{"product_id":"heartleaf-milkweed-mw1010","title":"Heartleaf Milkweed Seeds, Asclepias Cordifolia, Rare Native Milkweed MW1010","description":"I GET A LOT OF REQUESTS FOR TROPICAL MILKWEED, AKA SILKY RED OR SILKY YELLOW. I DO NOT CARRY IT, AS IT CARRIES A PARASITE THAT CAN HARM\/KILL MONARCHS AND SPREAD FROM CONTACT WITH OTHER BUTTERFLIES.\u003cbr\u003e PLEASE DO THE MONARCHS A FAVOR AND PURCHASE NATIVE SEEDS. TROPICAL MILKWEED IS NOT NATIVE TO THE U.S. ALL ASCLEPIAS SEEDS IN MY SHOP ARE NATIVE AND DO NOT CARRY THIS PARASITE. \u003cbr\u003e \u003cbr\u003e A beautiful purple-red milkweed native to California, Oregon and Nevada, it not only has unusual and stunning flowers but the leaves are heart shaped (where its' common name is derived) and have pink veining. The stems also often have a red or purple tint, which contrasts beautifully with the green foliage.\u003cbr\u003e \u003cbr\u003e The flowers grow in clusters (umbels), and are typically a vibrant deep red to purple, sometimes with a slight pinkish hue.\u003cbr\u003e \u003cbr\u003e Each flower has a unique, intricate structure with five downward-facing petals and a crown-like structure in the center.\u003cbr\u003e \u003cbr\u003e It typically grows in mountainous areas, such as the Sierra Nevada, the Cascade Range, and parts of the Klamath Mountains. Heartleaf milkweed thrives in dry, rocky soils, open woodlands, and lower montane areas at elevations ranging from about 500 to 7,000 feet.\u003cbr\u003e \u003cbr\u003e Its' long tap root makes it highly drought tolerant.\u003cbr\u003e \u003cbr\u003e This plant is especially valued for attracting monarch butterflies, as it's an important larval host for them.\u003cbr\u003e \u003cbr\u003e Grows 1-3 feet tall\u003cbr\u003e \u003cbr\u003e These need cold stratification to germinate. They either need 30 days of less than 45 degree weather outdoors or you can store the seeds in a moist paper towel and sealed in a plastic baggie and placed in your refrigerator for one month. This is needed in warm climates or for any climate when planting at a warmer time of year.\u003cbr\u003e \u003cbr\u003e Even with cold stratification, seeds can take anywhere from 4-8 weeks or longer to sprout. Sprouting time varies on weather conditions. In some cases, in warmer climates, the seeds won't sprout until there is a cold snap and voila! Please note that germination is poor at temperatures of 85 degrees and above.\u003cbr\u003e \u003cbr\u003e These can also be direct sown in fall in cooler climates where they will remain dormant and emerge in spring after a natural cold stratification. \u003cbr\u003e \u003cbr\u003e Please note that the sap of this plant can cause skin sensitivities in some people. You should always wash your hands after handling milk weed. \u003cbr\u003e \u003cbr\u003e Perennial zones 6-10\u003cbr\u003e \u003cbr\u003e Zone 6: Minimum temperatures down to -10°F to 0°F. In this zone, heartleaf milkweed may die back in winter but will typically regrow in spring.\u003cbr\u003e Zone 7-8: This plant thrives in these zones, with moderate winters and hot summers.\u003cbr\u003e Zone 9-10: Warmer regions where frost is rare. The plant does well in the dry, rocky soils typical of these areas.\u003cbr\u003e \u003cbr\u003e This is for 10 seeds\u003cbr\u003e \u003cbr\u003e I combine shipping on all seed orders, you pay one flat fee for as many seeds as you would like for no additional shipping. Orders over $35 for any combination of items in my shop ship for free!","brand":"SeedCult","offers":[{"title":"Default Title","offer_id":53058309947755,"sku":"MW1010","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/5815\/2043\/files\/0_21d820e8-2fdf-4774-afd7-4e4133284fd9.jpg?v=1775072261","url":"https:\/\/seedcult.com\/products\/heartleaf-milkweed-mw1010","provider":"SeedCult","version":"1.0","type":"link"}