Compass Plant

A Great Plains native, Compass Plant (Silphium laciniatum) is a tough, long-lived prairie wildflower that loves lots of sun, with summer flowers that seem to climb the towering stem. A must-have for habitat gardens, the flowers are highly attractive to native bees, while the fall ripening seeds are a favorite of seed-eating songbirds. Highly drought resistant once established, Compass Plants can live for decades.
Zones3 - 8
Advantages
attract-butterflies
Attract Butterflies
bee-friendly
Bee Friendly
hcg-deer-resistant-icon
Deer Resistant
checkmark
Native
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Great For Mass Plantings
multiplies--naturalizes
Multiplies / Naturalizes
Light Requirements
full-sun
Full Sun
Water Tolerance
Moderate Rainfall
Mature Height 5-9' tall
Mature Spread18-36" wide
Bloom TimeLate summer to early fall
Shipping DetailsShipping begins the week of April 11th, 2022 Learn More…
Item Package SizePlant - 5" Deep Pot
SKUHC017874

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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SKU
HC017874

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Details

Compass Plant (Silphium laciniatum) is a tough, tall-growing wildflower that pushes up a robust spike of loosely spaced yellow flowers. The large coarse leaves of this prairie plant generally point in a North-South direction, thus its common name, Compass Plant. It loves lots of sun and grows best in well drained soils; no heavy clay. Deeply tap-rooted, this is a very waterwise (xeric) plant once established in the garden. When growing in rich soils with plenty of water, Compass Plants can reach their full potential to grow over 8 feet tall, and in the right conditions, plants can live for decades. This long-lived plant may take a few seasons to reach maturity and full flowering. Compass Plant is a must-have for low-maintenance gardens and restoring lost prairie habitat. This is a good plant for meadows and naturalized gardens, and it grows well mixed with native grasses and other wildflowers. Recommended companion plants include Big Bluestem Grass (Andropogon), Little Bluestem grass (Schizachyrium), and Prairie Sage (Salvia azurea).

More Information
SKUHC017874
Item Package Size
Plant - 5" Deep Pot
Common Name
Compass Plant
Botanical Name
Silphium laciniatum
Zones
3, 4, 5, 6, 7, 8
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
5-9' tall
Mature Spread
18-36" wide
Bloom Time
Late summer to early fall
Ships As
Potted Plant
Soil Type
Sandy Soil, Average Soil, Compost Enriched Garden Loam Soil, Well-Drained Soil, Moist/Wet Soil
Soil Moisture
Waterwise
Advantages
Attract Butterflies, Bee Friendly, Deer Resistant, Native, Great For Mass Plantings, Multiplies / Naturalizes
Ideal Region
Northeast, Southeast, Midwest, West, Southwest, Pacific Northwest, Coastal California
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Ships To Canada
No
Planting Guides

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Shipping
ZoneShipping Status
Zone 2Shipping begins the week of May 16th, 2022
Zone 3Shipping begins the week of May 16th, 2022
Zone 4Shipping begins the week of May 16th, 2022
Zone 5Shipping begins the week of April 25th, 2022
Zone 6Shipping begins the week of April 11th, 2022
Zone 7Shipping begins the week of April 11th, 2022
Zone 8Shipping begins the week of April 11th, 2022
Zone 9Shipping begins the week of April 11th, 2022
Zone 10Shipping begins the week of April 11th, 2022

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

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