Seed heads can be harvested from production fields in late August or September. The prolific yellow blooms illuminate the landscape in the summer months. Some states have shipping restrictions, if you are shipping to Montana or Oregon please contact us before ordering! robinsonii L.M. Silphium laciniatum has thick, deeply divided leaves which often orient themselves in a north-south direction, hence the name Compassplant. US Regions: Plains/Texas, Midwest, Southeast, Bloom Season: Blooms Late Summer, Blooms Early Fall, Uses: Attracts Pollinators, Attracts Butterflies, Cut Flowers, Deer Resistant. temperatures; the lower the zone number the colder the winter. GALLON PLANT. For spring planting, mix the seeds with moist sand and store in the refrigerator for 60 days before planting. It was given to this group of plants because of their pine-scented, resinous sap. Size / Amount: Seed Pkt. The last step is to run the seed through the Jessee Aspirator with both vents wide open. Neutral: On Oct 11, 2004, tcfromky from Mercer, PA (Zone 5a) wrote: Compass plant is a long lived, tall, from 5 to 10 … In late summer and autumn sprays of big yellow daisies at the top. Item #: SIL03F. The bright yellow sunflower-like blooms will show-off well into September until the large seeds are dispersed by wind. Compass Plant (Silphium laciniatum) is a … Silphium laciniatum Compass Plant $ 3.00 – $ 6.00. Browse pictures and read growth / cultivation information about Silphium Species, Cup Plant, Carpenter's Weed, Indian Cup, Rosin Weed, Ragged Cup (Silphium … ... Silphium laciniatum Compass Plant. The basal leaves have a thick sandpapery texture, particularly on the underside, and they are up to 18" long and 12" wide. Learn about varieties which help to replenish nutrients to your soil. Step by step instructions on how to plant your wildflower seeds. The seed will germinate in the pots in spring as the weather warms up. We do not seek to profit from shipping fees, so rest assured that our shipping rates reflect an average of what it costs to get our guaranteed products safely to your door. Item #: SIL03F. If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will This tall perennial is a prevalent species in native seed mixes, especially if it is an area with more moisture. Silphium is often grown with tall grasses such as big bluestem, and it prefers full sun and moist to slightly dry conditions. Support local wildlife with native wildflowers. The central stem is thick, light to medium green, and has conspicuous white … Well developed plants may have up to one hundred large yellow flowers blooming from June through September. Compass Plant adds vertical height in gardens when scattered throughout. Seed Mixes. Because these cups tend to store rainwater, insects and small birds often visit this plant. Design Tips. The 15 ft deep root makes it very drought-tolerant! The seed heads can be run through ... Silphium laciniatum L., Compass Plant, Rosinweed, gum weed, cut-leaf silphium, or turpentine plant, livestock forage, Native American uses, culturally significant, wildlife, food, habitat Compass Plant may have the most unique leaves of the three species. Compass Plant (Silphium laciniatum) Tall sunflower-like flowers growing from 3-12ft tall with bright yellow flowers. Well developed plants may have up to one hundred large yellow flowers blooming from June through September. The yellow flowers with dark centers set atop a tall stalk that reaches a height of 4-5’. As soon as your order is placed you will receive a confirmation email. GALLON PLANT. Attracts a number of important pollinators, including a variety of native bees and several types of butterfly, including the Monarch butterfly. Perennial. For the best experience on our site, be sure to turn on Javascript in your browser. Thrives in areas with cold freezing winters and hot summers. 1 lb SEED. The Plants Database includes the following 2 subspecies of Silphium laciniatum .Click below on a thumbnail map or name for subspecies profiles. Telephone: 608.223.3571 Fax: 608.884.4640 Email: ecosolutions@agrecol.com 1/2 oz SEED. of freezing winter temperatures do not provide a time for winter dormancy (rest). Propagule Processing: After drying, run the seed through the Dybvig, dry, then over the Clipper with a top screen of 25 and a bottom screen of 9 to 13. Join our friendly community that shares tips and ideas for gardens, along with seeds and plants. Fruit is a dry, flat seed that forms from the ray flowers on the outer ring of the disk. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The leaves form "cups" on the stem; these cups will hold water from which … Less water, less mowing, and no pesticides. 1/4 oz SEED. Find mixtures for your region, or for special uses such as dry areas, partial shade, attracting animals, low growing, and more. Over 110 choices for fast color, such as poppies, cosmos, sunflowers, zinnia, and many more. ... Silphium laciniatum Compass Plant. If anything we sell fails to grow in your garden, we will replace or refund your order. According to legend, travelers on the American prairies once depended on the leaves of this plant to point the way north. Companion Plants. Why Buy Seed Favors For Your Promotion Or Event: Step by step instructions on how to plant your bare root or potted perennials when they arrive. Silphium laciniatum $ 2.50 – $ 150.00. Compass Plant prefers full sun and can grow up to 10’ tall, making it the perfect choice for a larger prairie or meadow. Dr. Asa Gray, one of the most influential 19th century American botanists, theorized that the specific orientation of the leaves allowed the plant to conserve water. Native Plant Specialists. 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