Pickerel Weed Seeds

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Pontederia cordata (Pickerel Weed) Wildflower Seed Pickerelweed, Pontederia cordata, is an emergent perennial with broad, sword shaped leaves and charming, tubular, blue and purple flowers on tall spikes. Pickerelweed (Pontederia cordata) care, facts, benefits, hardiness and growing advice. How to properly care and plant pickerel rush in garden ponds.

Pickerel Weed Seeds

Sowing: Before planting in the spring, mix the seeds with very wet sand and store in the refrigerator for 30 days before planting. Press into the surface of completely saturated soil such as mud; do not bury the seed. If starting the seed indoors, submerge the growing containers in water up to an inch below the surface of the soil. Germination can be slow and irregular.

Growing: Seedlings develop slowly, and may not bloom until their second or third year. These plants need constant moisture, whether planted in rich exposed soil or shallow water. They grow best in water under 12 inches, though they tolerate occasional flooding up to 24 inches. This plant makes an excellent addition to naturally wet areas like marshes, stream beds, and shallow ponds. Since it tends to spread vigorously by rhizomes once established, grow in a container submerged in water if spreading is not wanted. Mature plants can be divided in the spring. This plant attracts bees, butterflies, and dragonflies; water birds and small animals also like to eat the foliage and seeds.

Harvesting: For cut flowers, choose stems with flowers that have just opened. Strip the foliage that will fall below the water level, and place in water immediately.

Seed Saving: As the flowers stalks mature and develop seed, they will become immersed in the water and release their seeds. Gather the seeds as soon as they easily come loose from the stem, but before they drop and float away. The seeds are dormant at this point and will not germinate immediately, though they should be planted as soon as possible for the best germination rates.

FAST FACTS

Common Names: Lance-Leaf Pickerel Weed

Latin Name: Pontederia cordata

Species Origin: US Native Wildflower

Type: Native Wildflowers

Life Cycle: Perennial

USDA Zones: 3, 4, 5, 6, 7, 8, 9, 10, 11

US Regions: Mountain, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 340

Stratification: No Stratification (Seed from us has been Pre-Stratified)

Germination Ease: No Stratification

Sunlight: Full Sun

Height: 24 Inches

Color: Purple

Bloom Season: Blooms Late Summer

Unsuccessful getting the seeds to germinate

They simply do not care to sprout? Initially attempted to germinate in an AeroGarden enviornment, then tried in local to the pond water behind our home. nothing? The other seeds, Common Rush and even the Poppy seeds purchased are all doing well.

Great Source for REAL Native Seed

Love the packaging and turn time. Still wish you’d fix your Ebay store so I can be enabled to impulse shop without the chaos of expensive shipping when using my smartphone.

DESCRIPTION

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These showy spikes are formed of many small blue flowers. This native aquatic plant flourishes in shallow quiet waters, and can often be seen in the wild growing along marshes, streams, and ponds.

This aquatic plant flourishes in shallow, quiet waters; its hollow stems allow the leaves to float and accomplish photosynthesis. Pickerel fish, as well as other types of fish, tend to take cover in the foliage of this plant, while the seeds attract small animals and water birds. The genus name “Pontederia” honors Italian professor Giulio Pontedera, a botanist for the Botanical Gardens of Padua for many years. The species name “cordata” means “heart,” referring to the shape of the leaves. Because of its excellence for ornamental gardens, the Royal Horticultural Society gave this aquatic plant the Award of Garden Merit.

HOW TO GROW

Sowing: Before planting in the spring, mix the seeds with very wet sand and store in the refrigerator for 30 days before planting. Press into the surface of completely saturated soil such as mud; do not bury the seed. If starting the seed indoors, submerge the growing containers in water up to an inch below the surface of the soil. Germination can be slow and irregular.

Growing: Seedlings develop slowly, and may not bloom until their second or third year. These plants need constant moisture, whether planted in rich exposed soil or shallow water. They grow best in water under 12 inches, though they tolerate occasional flooding up to 24 inches. This plant makes an excellent addition to naturally wet areas like marshes, stream beds, and shallow ponds. Since it tends to spread vigorously by rhizomes once established, grow in a container submerged in water if spreading is not wanted. Mature plants can be divided in the spring. This plant attracts bees, butterflies, and dragonflies; water birds and small animals also like to eat the foliage and seeds.

Harvesting: For cut flowers, choose stems with flowers that have just opened. Strip the foliage that will fall below the water level, and place in water immediately.

Seed Saving: As the flowers stalks mature and develop seed, they will become immersed in the water and release their seeds. Gather the seeds as soon as they easily come loose from the stem, but before they drop and float away. The seeds are dormant at this point and will not germinate immediately, though they should be planted as soon as possible for the best germination rates.

FAST FACTS

Common Names: Lance-Leaf Pickerel Weed

Latin Name: Pontederia cordata

Species Origin: US Native Wildflower

Type: Native Wildflowers

Life Cycle: Perennial

USDA Zones: 3, 4, 5, 6, 7, 8, 9, 10, 11

US Regions: Mountain, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 340

Stratification: No Stratification (Seed from us has been Pre-Stratified)

Pickerelweed

Pickerelweed, Pontederia cordata, is an emergent perennial with broad, sword shaped leaves and charming, tubular, blue and purple flowers on tall spikes. The flowers attract many insects, that become prey to carnivorous plants. The leaves are large, waxy, and quite succulent. It is winter hardy, and prefers growing along the water’s edge. It is a prolific grower, tolerating a wide range of wet growing conditions. The rhizomes can grow rapidly, forming a nice colony of plants in a season. It is an excellent companion for bladderworts and Aldrovanda, providing dappled light, and organic matter to the water, essential for the development of micro organisms that become the prey for aquatic carnivorous plants. It is propagated from seeds and cuttings. Seeds are edible and leaves can be cooked like spinach.

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For Pickerelweed, each portion is a rooted, growing plant and size refers to age: small (1 year), medium (2 years), large (3+ years old).

Plants are shipped bare-root, wrapped in damp sphagnum moss. In it’s dormant season, it will be shipped as a dormant rhizomes with trimmed leaves. Photographs are representative of species, and not the specific plant shipped.

Height: 8″ – 16+”
Plant Type: Perennial, cold temperate
Soil: General Bog Mix
Soil pH: 5.5-7
Light: Full to Partial Sun
Use: Tall, stately blue flowers

Pickerelweed (Pickerel Rush) Facts, Care, Benefits, & Hardiness (Pontederia cordata)

Pickerelweed. Photo by Cephas, available under a Creative Commons Attribution-Share Alike 3.0 Unported license.

Pickerelweed, also called a pickerel rush, is a standout member of the water hyacinth family native to a large swathe of North America from the Northeastern Canada down to the Caribbean, and from the East Coast inland to the Great Plains. Pickerelweed is a sizeable plant, with lance-shaped leaves averaging 13cm in width and 26cm in length (5in x 10in). It is best identified by a spike of blue-purple flowers that erupt from a single stem beneath the water.

These plants regularly reach heights of 1m (3ft). The pickerel fish, commonly known as the northern pike, has a strong preference for living amongst the shady leaves of this plant, giving it its nickname. Its scientific name, however, pays homage to an Italian botanist, Giulio Pontedera (1688-1757), who studied flowering plants as a professor at the University of Padua.

Indigenous peoples from across much of eastern North America have written about pickerelweed over the centuries. The Anishinaabe people of Ontario, Manitoba, Minnesota, and North Dakota, referred to pickerelweed as “kinozhaeguhnsh,” which translated to “pike’s plant.” Again, this appears to be a reference to its ability to somehow attract these fish—although no specific breeding or feeding interaction between these two organisms has yet been uncovered. Several Native American tribes, including the Montagnais (Quebec and Labrador), the Micmac (Nova Scotia, P.E.I., Newfoundland), and the Malecite (New Brunswick and Maine), have reportedly used pickerelweed in medicine and steeped in tea as a general cure-all.

Does Pickerel Weed Have Any Benefits?

Many insects enjoy feeding on or seeking shelter in pickerelweeds. Damselflies and dragonflies are known to lay eggs at the plant’s base. For this reason, gardeners who want to attract dragonflies report having great success when planting pickerelweed. Pickerelweed is also a favorite of bumblebees (Bombus spp.) and other bee species, Melissodes apicatus and Dufourea novaeangliae, which preferentially scavenge pollen from pickerelweed. Sulfur butterflies may forage the plant’s nectar, and certain Borer moth larvae including that of the Pickerelweed, White-Tailed Diver, and Cattail moths (Bellura densa, Bellura gortynoides, and Bellura oblique, respectively) feed on its stalks, leaves, and petioles.

Pickerelweed Growth, Hardiness & Wintering

Pickerelweed is a hearty grower and can reach a height of 1.2m (4ft) and spread of 0.6m (2ft) in diameter. These plants prefer to grow in full sunlight, and will show their environmental satisfaction by sprouting its eye-catching flowers. Flowers bloom continuously beginning in early summer and continue to do so, albeit less robustly, during the fall. Its natural habitat reaches up into Nova Scotia, indicating that Pickerelweed is capable of surviving harsher climates. It grows in USDA hardiness zones 3 to 10, meaning that it can withstand minimal winter temperatures of -40 to -37°C (-40 to -35°F).

How to Plant Pickerelweed (Pickerel Rush)

Pickerelweed can either be planted your pond margins at the start of spring, or in a pot of sandy or clay loam. These plants should be submerged in a maximum of 13cm (5in) of water. It is important to note that the fibrous root systems of pickerelweed can expand and infiltrate other areas of your pond. To prevent this, simply plant in a container. Pickerelweed can also be planted from seeds by spreading 20 to 30 live seeds per square foot or 1/3 square meter. These seeds germinate in cool, moist, loose soil so planting just beyond the pond margin or in a regularly watered pot is recommended.

How to Care for Pickerelweed (Pickerel Rush)

The most important care instructions for pickerelweed is that it must be kept wet and in direct sunlight. All other considerations such as fertilizer and temperature are secondary. Since pickerelweed is such a great grower, it is recommended that you divide the plant every few growing seasons so it does not get too large. To do so, dig up the plant and cut through the thick mat of roots, called rhizomes, to separate out a section of healthy leaves and roots. Replant one of the sections and use the other to start a new plant.

If left unattended, pickerelweed will grow into thick colonies like they do in the wild. It is also important to keep your water levels between the base of the stem and the bottom of the leaves; water levels should exceed the height of the lowest-growing leaves.

How to Winter Pickerelweed:

To overwinter, cut back the pickerelweed and ensure the crown of the plant (the area where the stem joins the roots) is submerged in at least 10cm (4 in) of water. Pickerelweed can survive winter as long as the crown does not freeze.

Is Pickerelweed Toxic, Poisonous or Invasive?

The classification of pickerelweed as a “weed” can be considered a misnomer. Unlike other weeds that are undesirable and provide little in terms of appearance, pollinator attraction, or utility, pickerelweed is a favorite plant of gardeners and ecologists. Although they grow rapidly and across a wide range, pickerelweed has not become an invasive or noxious weed. In fact, it is considered threatened in the U.S. state of Kentucky.

Will Koi, Goldfish, & Animals Eat Pickerelweed?

Pickerelweed is edible to both animals and humans, alike. Many individuals like to harvest the spikey seeds from pickerelweed flowers collected in the fall at the end of its season. These seeds can be roasted, eaten raw, or ground into flour, and make a delicious addition to homemade granola. Horticulturists are not the only garden dwellers that have found their pickerelweed to provide a tasty snack. Deer will voraciously feed on the leaves of this aquatic plant while ducks and muskrats prefer its seeds.

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In terms of koi and goldfish, although they’re unlikely to eat the rhizomes, stem or leaves of the plant, they still may consume the seeds that happen to drop into the pond water.

32 thoughts on “Pickerelweed Facts, Care & Planting Guide (Pontederia cordata)”

can I buy pickerel weed in uk

Yes, you can pick up pickerel weed from most aquatic plant nurseries in the UK. If you don’t have any close-by, you can also simply order them from most online nurseries or even purchase directly on Amazon:

Thanks for the feedback.

How much will it cost me to plant pickerelweed on 1m by 1m soil?

That depends on where you buy the pickerelweed! Your best bet is to do a quick online search for pickerelweed for sale and figure out where you can get it that has a price point that works best for you. However, pickerelweed can spread fast, so each plant should be planted 2-4 feet from any others. With that in mind, you should only have 1 or 2 plants in each 1m by 1m plot. Depending on where you buy them and whether you buy seeds or bare root plants, this should range from between about $5 and $20 per plot, but again your best bet is to do a quick search to see what’s available to you.

I live in Central Texas. We had a hail storm 5/27/2020 that tore up our Pickerelweed considerably. Thankfully, they had just completed a bloom cycle with just a few blooms remaining. Do you have any advice for what to do now. Do I cut them back? I’m a bit concerned we are approaching summer heat. Thank you for your help.

Does anyone know if this plant is toxic to dogs? I would like to plant it in my backyard where there is a wet area. Please reply to my email. thank you!

Pickerelweed is not toxic to dogs (or other animals or humans), so you should be good to go for planting it!

Will Pickerelweed harm the rubber liner in our Koi pond?

Hello, I have just acquired some Pickerelweed for a very small pond. Although I don’t want it to choke up the pond with its roots, I also would like it to spread beyond the are of the container holding it. Do you have any advice? Thanks

I would suggest floating plant shelves or a large aquatic planting basket! These are larger than containers or pots, but some designs will still control the roots while allowing more room for the plant to grow. Hope this helps!

I just received some Pickerelweed bare root plants. This is my first time to have them. What do I need to do with them until I can plant them in the pots in my pond, or can I go ahead and plant now? Any help would be greatly appreciated!

It’s usually best to plant pickerelweed in the spring, but you can go ahead and try planting them now. There should be at least a couple of months left in the growing season (depending on your location), so it may be enough time for them to establish. Alternatively, if you have somewhere where you can store the bare roots at a temperature between approximately 33 and 40 degrees F (1-4 degrees C), this should encourage them to go dormant until you’re ready to plant them.

We recently transplanted a pickererlweed and we are seeing new growth and beautiful flowers. However, the leaves all look dusty and brown. They are not green and glossy as they should be. The plant is beneath a mosquito misting system so I am wondering if it is simply the Saharan dust in the air getting stuck to the leaves. If so, how.should I clean the leaves?

Using a damp rag and gently wiping them off should work. You could also simply rinse them gently with a hose or sprayer of some sort, but if they’re located in or near a pond this would cause the dust to runoff into the water.

I picked one up at Lowe’s recently I put it in a small container, just wondering how long should it take before getting leaves and such? Thank you.

Thanks for reading! Your pickerelweed should have, or at least start developing, leaves within 2 to 3 weeks.

We have had a pickerel Rush since May in our small pond. We have never had flowers and the leaves keep turning brown and dying. We have had new leaves but when they get to a certain height they turn brown. What can we do? We have a few goldfish and we have tried fertilizer.

It could be transplant stress – most bog plants are best transplanted in early spring (usually March or early April) while they’re still mostly dormant, so as to minimize stress. Pickerelweed does tend to take long to recover from transplant stress, so it could be that you won’t have much luck with them this season.

Have the leaves been turning brown from the get-go, or is this a more recent issue? If it’s more recent, this is somewhat common for pickerelweed later in the season as the plants reach maturity. You can try trimming off the brown leaves, which would help the plant devote energy to new leaves and, hopefully, flowers. Sometimes new plants can take a couple of seasons to become established enough to bloom, so I wouldn’t worry too much about the lack of flowers this year!

Your climate may be contributing, as well. They enjoy full sunlight, but if you live in a region that has very intense sunlight and/or gets quite hot, it could be that the plant is experiencing heat stress. If you do live where there’s intense sunlight/heat, you can try providing them with partial shade. How much water are they planted in? If they’re just kept in damp soil, you can try increasing how much water they have access to.

I know that’s a lot of potential options, but hopefully that helps you narrow down what the issue may be!

Will pickerel weed take over my pond? I have a 1/4 acre pond that is 6 feet deep. Will pickerel just stick to the shallows at the edge? Thanks!

Thanks for reading!

Pickerelweed will not overtake your whole pond. It doesn’t tend to grow in water any deeper than 5 to 6 inches maximum, so it’ll just stick to the edges

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Hi, I’m dividing a neglected patch of pickerel weed and want to gift it to friends. Can I let the rhizomes dry and keep them in a dry, dark place, so others can plant them in their ponds later? Or do I need to select rhizomes with green attached and store them in pots submerged in water?

Pickerelweed isn’t tolerant of drying out, so your best bet is to keep the rhizomes submerged in water until you are able to give them to your friends.

Thanks so much for this great info! I have a small pond and would love to grow pickerelweed. However, our yard also connects to a county park and we get regular deer visitors. Should I even bother?

If you are living with its native range (eastern and southern North America), then I would give it a go! Perhaps start the pickerelweed in a protected area in pots or fencing, and then transfer them once they are more mature. They are hardy growers, though, so deer browsing on the pickerelweed could be a boon and help to control overgrowth.

My farm pond goes from 1 foot to 6-8 ft. If I plant pickerelweed at the edge of the pond will it stop growing in the deeper water (more than 2 feet deep) As i don’t mind growing around the edges, just dont want it to over take the pond.
thanks

Will Pickerelweed ever grow beyond 2 feet depth of water? As i want to make sure before i plant that it wont start spreading and taking over my farm pond as it only go to about 6 feet deep? Thanks for any feedback!
Randy

Can pickerelweed roots and rhizomes be planted directly in rocks on a plant shelf in my pond at the correct depth of 4-6 inches? I’m using plant roots to filter the water in my pond so I don’t want to grow plants in clay or in stationary pots. I have some watercress and parrot feather laying in baskets floating in the pond and they are both thriving. The watercress is also planted in rocks along my waterfall, the roots are spreading in between the rocks and is thriving. I also have Loriope, Hostas, and several varieties of iris growing directly in the pond held in place by rocks.

I’m hoping to do the same with the pickerel. Thanks for any advice.

I am making a new bog filter for my pond, can I plant these directly in the pea gravel in the bog filter or should I keep them in pots in the main pond. I would like both. Thanks

You can absolutely incorporate pickerelweed into your bog filter! Their roots are pretty good at filtering water. However, as noted in the article they can grow thick and fast, so you’ll want to keep an eye on the plants and remove/divide them as needed so they don’t choke up your natural bog filter and overtake other plants.

Hi, we have an ornamental pond that is 12×20 and 3 feet deep. Our pickerelweed is 23 years old. It grows in the middle of the pond and is literally taking over 3/4 of the surface area! Each year my husband cuts all the way around it, but this year his knife won’t cut through it! Any suggestions what we could use? It’s like an island and very deep!

I live in the southern states of Australia where there is very little in the way of “winter” conditions lately. It has been rather dry, with mild to moderate rainfall when it does bother. It rarely even frosts over in the colder months, so freezing or snowfall is not an issue for me. I have Pickelweed growing in an aluminum tub (I have it in a pot, and the tub is a substitute for a pond). I keep the base of the plant and about the first one to two inches of the stalks continuously submerged.I live in suburbia and have this set up rather than a pond etc. I am not usually good with any form of gardening (brown thumb) and have managed to keep my plant alive for two years and counting. My plant has only flowered once, and it usually is made up of only 7-8 leaf fronds. Is it normal for a stalk/leaf to gradually turn brown and then die off? I usually cut these away once that happens, but this is why my plant usually has no more than 8 fronds/stalks. Recently I have noticed that at the edge of my pot the Pickelweed is in, there are new leaves shooting up. I initially thought that the plant had divided and I was going to have to split it. I knew nothing about Pickelweed, so I thought I would read up on it to see what I could deduce. Now I am even more confused as to whether or not my plant is behaving normally or not. Flowering only once inside a two year period? Sending up new shoots (appears as if the plant has split into two)? and the way that the leaves die off so that the plant maintains a size of 7/8 stalks? I also noticed that around the time the plant flowered, for the first and only time ever, my plant had actually temporarily sent up 10 stalks rather than the regular 7. Is this the sign of a plant that is barely surviving or is it doing ok? I have recently learnt that it could do with more sunlight, as it sits in a shaded area that only gets direct sunlight for maybe 3 hours a day. The rest of the day it gets indirect sunlight.
Any suggestions or recommendations would be awesome.
Thanks in advance.

Hello. I was wondering about my half acre pond. I really love pickerel weed and we have one successful plant growing by the edge. I tried to add some small ones last year and they all died. I think it might be because of the changing water level. As the summer progresses and we get less rain the pond level can go down as much as a foot or 18 inches. Could this be the problem?

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