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Yellow Butterfly Weed
Asclepias tuberosa 'Hello Yellow'
Yellow Butterfly Weed is a great choice when you want the monarch value of native Butterfly Weed with a brighter golden-yellow flower color. It brings all the pollinator benefits gardeners look for in Asclepias tuberosa, including monarch host value, butterfly appeal, and drought tolerance once established. I especially like it planted in groups where the yellow flowers can really show up and where monarchs, bees, and hummingbirds can find it easily.
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Golden Native Milkweed for Monarchs and Pollinator Gardens
Bright yellow flowers with native garden value.
Yellow Butterfly Weed brings clusters of golden-yellow flowers to sunny gardens in summer, creating a cheerful color display that feels both ornamental and natural. This yellow form of native Butterfly Weed is especially useful for gardeners who want the ecological value of Asclepias tuberosa with a softer flower color than the traditional orange species. The flat-topped bloom clusters pair beautifully with coneflowers, alliums, black-eyed Susans, salvia, yarrow, catmint, ornamental grasses, and other full-sun perennials.
A monarch host plant with strong pollinator appeal.
Asclepias tuberosa 'Hello Yellow' is a milkweed cultivar, which means its foliage can support monarch butterfly caterpillars. The nectar-rich flowers also attract adult monarchs, other butterflies, bees, hummingbirds, and beneficial insects, making it a valuable plant for pollinator gardens and wildlife-friendly landscapes. Planting several together gives pollinators a stronger visual target and helps create a more effective monarch-supporting garden.
Made for sun, heat, and dry soil.
Yellow Butterfly Weed thrives in full sun and well-drained soil, including dry, sandy, rocky, lean, and average garden conditions. Once established, it becomes drought-tolerant and handles hot summer sites with very little fuss. This makes it an excellent choice for dry borders, sunny slopes, meadow-style plantings, curbside gardens, rock gardens, and pollinator beds where strong drainage and low maintenance are important.
Low maintenance once established, but best left in place.
Like other Butterfly Weed varieties, Hello Yellow develops a deep taproot that helps it tolerate dry conditions but also makes mature plants difficult to move. Choose the planting site carefully and give it time to settle in, since milkweeds can be slower to establish and slower to emerge in spring than some other perennials. Once rooted, this plant is long-lived, sturdy, and easy to maintain in the right sunny, well-drained location.
A sunny color partner for naturalistic designs.
Yellow Butterfly Weed adds a warm, glowing accent to native gardens, butterfly gardens, cottage borders, and prairie-style plantings. Its yellow flowers blend easily with cool blues and purples, bold oranges and reds, or soft whites and grasses for a layered perennial design. After flowering, narrow seed pods may form, adding late-season interest, or they can be removed before opening if you want to reduce self-seeding.
| Hardiness Zone: | 3-9 |
|---|---|
| Mature Height: | 18 to 30 inches |
| Mature Width: | 1 to 2 feet |
| Sunlight: | Full Sun |
| Soil | Dry to medium, well-drained soil; adapts to sandy, rocky, lean, loamy, and average soils |
| Water | Water regularly after planting; drought tolerant once established |
| Bloom Time / Color | Early to late summer; golden-yellow to bright yellow flower clusters |
| Foliage | Narrow green leaves on upright stems; unlike many milkweeds, sap is typically clear rather than milky |
| Ornamental Features | Golden-yellow flower clusters, native wildflower habit, upright clumps, seed pods, strong pollinator activity |
| Wildlife Value | Monarch butterfly host plant; attracts adult butterflies, bees, hummingbirds, moths, and other beneficial pollinators |
| Resistance | Deer resistant in many settings, drought tolerant once established, heat tolerant, dry-soil tolerant, and generally low maintenance |
| Landscape Uses | Monarch gardens, pollinator gardens, native gardens, butterfly gardens, sunny borders, meadow gardens, prairie plantings, dry slopes, rock gardens, cut flower gardens, and naturalized areas |
How to Care for Yellow Butterfly Weed
Be sure to read our planting instructions to ensure a healthy and happy Yellow Butterfly Weed for years to come!
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How should I plant Yellow Butterfly Weed?
Plant Yellow Butterfly Weed in full sun with well-drained soil. Choose the planting site carefully because Asclepias tuberosa develops a deep taproot and does not like being moved once established. Dig a hole about twice as wide as the root ball and set the crown level with the surrounding soil. Backfill gently, water deeply, and space plants about 18 to 24 inches apart to allow airflow, mature growth, and room for pollinators to move through the planting.
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How often should I water Yellow Butterfly Weed after planting?
Water Yellow Butterfly Weed regularly during the first growing season while the roots establish. Keep the soil lightly moist after planting, but avoid soggy conditions because this milkweed performs best in well-drained soil. Once established, Yellow Butterfly Weed becomes drought tolerant and usually needs little supplemental water except during extended drought. Deep, occasional watering is better than frequent shallow watering because it supports the plant’s naturally deep root system.
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When should I fertilize Yellow Butterfly Weed?
Fertilize Yellow Butterfly Weed lightly in spring only if your soil is extremely poor. In most gardens, this native milkweed cultivar grows best without heavy fertilizer and often performs well in lean, average, or sandy soils. Avoid high-nitrogen fertilizer or overly rich soil, which can encourage soft growth and reduce the rugged habit that makes Butterfly Weed so useful in dry, sunny gardens. A light compost top-dressing is usually enough if the planting bed needs improvement.
When and how should I prune Yellow Butterfly Weed?
Prune Yellow Butterfly Weed in late winter or early spring by cutting old stems back before new growth begins. The plant may emerge later than some perennials, so mark the planting spot and avoid disturbing the crown in early spring. During the growing season, deadhead spent flowers if you want to encourage a tidier look or reduce seed pods. Leave some seed pods if you want natural reseeding or late-season interest, but remove them before they split open if you want to limit seedlings.
