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Asclepias tuberosa 'Hello Yellow' (Butterfly Weed) is a native, pollinator-friendly knock-out with cheerful butter-yellow flower clusters. Flowers will bloom in summer, and the rich green foliage is the perfect complement to the flowers. This low-maintenance perennial is drought tolerant once established, making it the perfect waterwise addition to a perennial garden border, meadow, or pollinator garden. Butterflies, bees, and hummingbirds all love butterfly weed, but deer stay away. Make your butterfly garden a destination with ‘Hello Yellow’!
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).
Asclepias tuberosa 'Hello Yellow' (Butterfly Weed) is a member of the milkweed genus and a worthy addition to a pollinator-friendly garden. Golden yellow flower clusters cover the plant adding a lovely dimension to your summer garden. At 18-36" tall, it fits nicely with Echinacea, Lavender, and Penstemon. While they are slow to emerge in the spring, mark their spots to keep their spaces open. Not fussy about soil, plant it in a sunny spot, and once established, it is a drought tolerant, low-maintenance garden stalwart. Great cut flowers, the seed pods are coveted for dried arrangements. 18-36" tall x 12-24" wide.
More Information
SKU
HC017436
Item Package Size
Plant - 2.5" Pot
Common Name
'Hello Yellow' Butterfly Weed
Botanical Name
Asclepias tuberosa 'Hello Yellow'
Zones
3, 4, 5, 6, 7, 8, 9
Light Requirements
Full Sun, Morning Sun & Afternoon Shade
Flower Color
Yellow
Mature Height
18-36" tall
Mature Spread
12-24" wide
Bloom Time
Mid to late summer
Ships As
Potted Plant
Soil Type
Average Soil, Sandy Soil, Compost Enriched Garden Loam Soil
Soil Moisture
Waterwise, Average, Moist / Wet
Advantages
Bee Friendly, Attract Butterflies, Attract Hummingbirds, Deer Resistant, Native, Great For Mass Plantings, Good For Cut Flowers
Asclepias (Milkweed) are sun loving plants that are essential perennials for monarch butterflies providing food for caterpillars and nectar for adult butterflies. They bloom from mid-summer into early fall and, with their milky sap, are resistant to rabbits and deer.
Asclepias can be divided into two groups for plant care; Asclepias tuberosa with orange (sometimes yellow) flowers and all the other species with pink (sometimes white) flowers.
Asclepias tuberosa (Orange Butterfly Weed) - this perennial stays dormant until later in the spring than many other plants, especially when grown in pots. It's fine to plant dormant plants; don't up-pot them for planting later in the growing season.
Preferred growing conditions:
Need sandy or gravelly soils (except the Clay form which does well in heavier soils including dry clay.)
Does best with gravel mulches.
After their second growing season, only requires deep but infrequent watering. Plant in full hot sun.
Just a few handfuls of compost and Yum Yum Mix added to the planting hole is enough. Don't plant into a rich, highly-amended soil.
Special comments:
When planting dormant plants, water thoroughly after planting and wait to water again until the plant comes into active growth, at which time a deep watering every week or so is adequate. Take care not to overwater young transplants.
Asclepias has a long, carrot-like tap root that should remain undisturbed after planting and should NOT ever be divided.
Most Asclepias species are late to wake up in the spring, and will often be shipped as dormant plants. Don't despair if your milkweed is asleep. The white roots and woody crown are alive just waiting for consistently warm weather to wake up and begin to grow.these perennial species stay dormant later in the spring than many other plants, especially when they are grown in pots. It's fine to plant dormant plants; don't up-pot them for planting later in the growing season.
Preferred growing conditions:
These species grow in a wide range of soil types, including clay.
They don't need mulching (except in very hot climates).
These are moisture-loving perennials and do well in wet to moderately moist soil conditions.
Plant in full to part sun areas.
They like compost enriched soils at planting time.
Special comments:
Asclepias syriaca and A. speciosa will spread to make big patches of plants and are best planted in parts of the landscape where they won't crowd out less vigorous plants. Not recommended for the prime spots in your perennial beds.
Asclepias incarnata (Swamp Milkweed) is a more refined grower and is fine to include in perennial beds.
Oftentimes, Milkweeds won't grow much their first season in the ground, so be patient. They are establishing their root system and crown. By the second growing season, the plants will begin to get bigger and look more robust. Asclepias species are an odd bunch and don't behave like many other more familiar perennials. So be patient and accept their quirky nature.
Garden care:
Fertilize Asclepias just once in fall with Yum Yum Mix and Planters II. - Naturalized plantings don't need additional fertilization.
To encourage re-seeding and provide winter interest with their ornamental seed pods, leave the stems intact over the winter. In mid-spring, remove old stems just above ground level.
All species of Asclepias are late to emerge in the spring, so don't be concerned if other perennials come up first and they remain dormant.
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.
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Zone
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Zone 2
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Zone 3
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Zone 4
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Zone 5
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Zone 6
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Zone 7
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Zone 8
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Zone 9
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Zone 10
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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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We charge one low flat rate for shipping our products even if your order requires multiple shipments. If you have any questions, please call us at (800) 925-9387.
 is a native, pollinator-friendly knock-out with cheerful butter-yellow flower clusters. Flowers will bloom in summer, and the rich green foliage is the perfect complement to the flowers. This low-maintenance perennial is drought tolerant once established, making it the perfect waterwise addition to a perennial garden border, meadow, or pollinator garden. Butterflies, bees, and hummingbirds all love butterfly weed, but deer stay away. Make your butterfly garden a destination with ‘Hello Yellow’!)
