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Growing Lupine

Category Flowers
lupine in yard
Lupine produce beautiful flowers on tall spikes making them a good background choice for your flower garden. This is a guide about growing lupine.
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By 6 found this helpful
August 3, 2010

Have you ever gathered seeds from wild lupine plants to sow in your garden and ended up with disappointing results? Stands of lupine are easy to establish this way, providing the conditions are right. Here are some tips for sowing and growing wild lupine that will increase your chances of achieving success.
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Profile of Wild Lupine (Lupinus perennis)

Distribution: In Canada, wild lupine occurs in Ontario and Newfoundland. In the United States, its natural distribution extends from Minnesota and Iowa eastward through the Great Lakes and New England south through Kentucky, West Virginia, and the Atlantic coast states to northern Florida and eastern Texas. (Source, USDA Forest Service)

Appearance: Lupine grows from 8 to 24 inches tall. Plants feature 7 to 11 dark green palmate leaves, and eighteen-inch spikes of flowers that vary in color from white to pink to shades of dark violet-blue.

Reproduction & life cycle: Lupine are perennial members of the legume family. (Like other legumes, lupine are nitrogen fixers-they actually increase the amount of nitrogen in the soil where they grow.) Individual plants can be short-lived or long-lived, depending on environmental conditions. Reproduction is by seeds or rhizomes. Each adult plant is capable of producing dozens of pods that hold several hundred seeds each.

Germination & flowering: Lupine germinate in late March to mid-April and produce blooms their second year of growth that flower annually from May to June.

Ecological importance: Lupine are the only larval food source of the federally endangered Karner blue butterfly. They are also visited by honey bees, bumble bees, eastern carpenter bees, black swallowtail, clouded sulfur butterflies, and many other beneficial garden insects.

Toxicity: The foliage is said to be toxic to sheep and horses. Although typically ignored by wildlife, deer, rabbits, and woodchucks may occasionally browse on wild lupine.

Ideal Growing Requirements

Lupine will grow almost anywhere, but perform best in cooler climates. Lupine prefers full sun and grows best in sandy soils with a slightly acidic pH. In the wild, you can find them growing in dry, sandy openings such as those found in savannas, woodland clearings, or areas recently disturbed by grazing, logging, or fire.

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Tips for Collecting Seeds

Only a small percentage of wildflower seeds survive, so you'll need to gather and sow lots of them for best results. Never collect more than 30% of your lupine seed from a single area, and steer clear of areas known to support Karner blue butterflies. Instead of trying to gather enough seeds to establish a stand all at once, gather and plant seeds over the course of several years. Be a good steward. Always obtain permission from private landowners and check permit requirements before collecting seed on public land.

Collecting wild lupine seeds can be tricky. As seeds in the pod mature, the seed pod blackens and dries. When seeds are fully ripe, the pod splits open suddenly and launches the seed several feet away (up to 16 feet!). This process happens quickly-usually in early summer (late June or early July). The goal is to collect the pods when they are almost ripe--after they blacken but before they split open and launch their seeds. Plants growing in drier, sunnier areas, or on steep slopes tend to mature the earliest.

If you miss your first window of opportunity to gather seed pods, don't worry. You may get a second chance. The seeds in the lowest pods on the stalk ripen first. They usually burst open (or are eaten by insects) before those in the upper pods are ready.

To collect the seeds, cut off stalks containing several almost-ripe pods and put them into a large paper bag. Poke a few small holes in the bag to promote air circulation and store the bag in a cool, dry place. Make sure to staple the bag shut! ( I learned this the hard way.) As the pods continue to ripen in the bag, they will burst open with great force. If your bag isn't secured shut, you may lose a lot of your seeds, or at the very least, have a real mess to clean up. After about a week of letting them dry out and burst in the bag, you should be able to open it and discard the empty pods.

Tips for Planting Seeds

Lupine seed tends to grow best when planted in the late fall, before the ground freezes. In cooler zones, fall-planted, air-dried seed does not need to be cold-treated, nicked, or soaked in water before planting. It will germinate in the spring, when soil moisture is ideal and temperatures are just above freezing.

Randomly sprinkling seeds over a desired growing location is unlikely to give you good results. The seeds need to make good contact with the soil in order to take root and grow. You'll have much better luck if you lightly rake the area and press the seeds gently into the soil.

Seeds may germinate shortly after they are planted or remain dormant for several years. Because they have such hard seed coats, germination is often improved by soaking the seeds for 15 to 30 minutes in warm water, or nicking them lightly on the round side with a razor blade. In warmer zones, germination rates may also be improved by storing the seeds at near freezing temperatures for 6-8 weeks before sowing. Seedlings will bloom the second year. Once established, plants will self-sow.

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Comment Was this helpful? 6

Questions

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August 13, 20110 found this helpful

I would like to know how to grow lupinus, can I do it from seeds from the plant I have already?
If so when do I take the seeds from the plant?

By Mick B

Answer Was this helpful? Yes
August 16, 20111 found this helpful

Usually they reseed themselves but they are a short lived plant. I had beautiful lupines last year but this year, although I had a lot of them come up, they never flowered. So don't know if I will get any next year or not. I had a neighbor who gave me the plants to start mine. She had a whole field of them. Here is a pic, aren't they lovely?

Reply Was this helpful? 1
August 20, 20110 found this helpful

I let mine reseed themselves, but they are bi-annuals so the new ones coming up this year will not bloom until next year. They are one of my favorite flowers.

Reply Was this helpful? Yes
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July 24, 20110 found this helpful

I know lupines are an aggressive flower, but that is what I want for a large area. If I just throw lupine seeds around this area where there is also weeds and some grass, will they take hold and sprout without putting dirt over them? I was thinking of trying this in the spring and just water that area well. It is also very shady.

By Kate

Answer Was this helpful? Yes
July 29, 20110 found this helpful

Plant your seed in the fall and they will come up in the spring Lupines are bi-annuals so they will not bloom until the second year. I have a huge bed and they are beautiful. I let mine reseed themselves.

Reply Was this helpful? Yes
July 29, 20110 found this helpful

I love these flowers, the look, the fragrance, the colors. I've not tried to grow any (yet) because I've not been at home often enough thru the years to be able to spend much time in my garden (or elsewhere for that matter!). But when traveling to & from our work sites for well over a dozen years now, we see tons of lupine along the roadside and in the fields. For sure, they do not need much care if they grow so profusely in the wild! Good luck. I may check in with you later to see how you handled planting them.

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By 0 found this helpful
September 12, 2008

Is Lupine OK to grow in southeastern MA?

Hardiness Zone: 7a

Ann from MA

Answer Was this helpful? Yes
September 15, 20080 found this helpful

From someone who planted lupine, it spreads everywhere and very hard to get rid of

Reply Was this helpful? Yes
September 16, 20080 found this helpful

There are different varieties of Lupine. Find one that will grow in your hardiness zone. There are mountain lupine, even dessert lupine. Just make sure you have room for it to grow and multiple...don't have to buy many plants:)

Reply Was this helpful? Yes

Photos

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By 5 found this helpful
June 23, 2009

These are my pretty lupines that I finally got established this year. The gazing ball in the background is made from a bowling ball and glass 1/2 balls and glue. It does not break as easy as the regular gazing balls!

By laniegirl from Iowa

lupine in yard

Comment Like this photo? 5

By 6 found this helpful
November 18, 2010

I love this photo! Just a wonderful shot of some wild lupines growing at the Lupine Festival in Sugar Hill, New Hampshire. I shot this while attending the Festival in the Spring as a part of the New England Photo Expeditions group, on www.meetup.com.

We go to many different areas and have organized shoots several times a month throughout the year; in Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, and even in Connecticut once in a while. We really have a great time together. Anyone can join with point and shoot cameras, SLR cameras, or if you want, you can even shoot film!

This is one of my favorite photos from Sugar Hill, NH's annual Lupine Festival.

By Deborah

Lupine Festival

Comment Like this photo? 6
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