Cardinal flower is an upright growing, 2-4 ft. tall perennial which produces spikes of brilliant flame-red 1.5 in. flowers in late summer. Hummingbirds love them beyond compare. A bog plant in nature, Cardinal flower needs moist, rich soil. Plants prefer part or filtered shade where summers are hot. Self-sows. Winter hardy to zone 3.
Growing Cardinal Flower Lobelia Seeds
Plant Perennial Lobelia Seeds: Sow seeds in cell packs or two in. pots, press into soil but do not cover. Needs light to germinate. Kept at 75°F., germination is usually within 4-5 weeks. If not, put container inside a zip-lock bag and refrigerate for 4 weeks. Then return to 75°F. until germination occurs.
Grow Perennial Lobelia: Part sun in most areas. Full sun in cool climates. Filtered shade in hottest climates. Ample water, rich soil. Tolerates average soil and boggy conditions. Probably the brightest red wildflower, hummingbirds love them, especially Ruby-Throated hummingbirds. The nectar-rich flowers also attract Swallowtail, Sulphur and a host of other butterflies. Cut flowers look great in the vase with Goldenrods and New York Asters. Plants are deer and rabbit resistant.
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We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.