Medicinal
Alpha Calendula is a compact, frost-tolerant flower that brings vibrant orange double-blooms to gardens in zones 2 through 10. Also known as Pot Marigold, this open-pollinated cultivar grows 12 to 36 inches tall and produces flowers ready to harvest in just 50 to 55 days, making it one of the quickest bloomers for cut arrangements. With edible petals and traditional medicinal uses, Alpha Calendula serves both the kitchen and the apothecary, adding practical beauty to permaculture systems and cottage gardens alike.
12-18 inches apart
Partial Shade
Moderate
2-10
36in H x ?in W
Annual
High
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Those vibrant orange double-blooms reach up to 3.5 inches wide, creating a striking visual impact that reminds many gardeners of gerberas. The compact growth habit means you can tuck Alpha Calendula into smaller spaces without sacrificing the abundance of flowers, especially when you make successive sowings every two to three weeks for continuous blooms right through heavy frost. What truly sets this variety apart is its remarkable dual purpose: the same flowers you arrange in a vase can be harvested for the kitchen and herbal preparations, making it far more than just ornamental.
As a cut flower, Alpha Calendula excels in fresh arrangements, with blooms that last well in the vase when harvested at the right stage. The petals are edible and can be used in culinary preparations, though the calyx and flower centers should be discarded. Beyond the vase and kitchen, the flowers serve herbal and medicinal purposes in traditional preparations.
Sow seeds indoors 4 to 5 weeks before your intended transplant date. Use a seed-starting mix and maintain soil temperature between 55 and 75 degrees Fahrenheit for reliable germination.
Transplant seedlings outdoors after the danger of frost has passed, spacing plants 6 inches apart. Harden off seedlings gradually to acclimate them to outdoor conditions before planting in their final location.
Direct seed is recommended after danger of frost. Sow at a depth of 1/4 inch. For continuous blooms from summer through heavy frost, make 2 to 3 successive sowings 2 to 3 weeks apart.
For cut flowers, harvest once the bloom is approximately 50 percent open, which extends vase life. For edible uses, wait until flowers are fully open, then pull petals off before using in dishes; discard the calyx and flower centers. Harvest regularly to continue the plant's blooming cycle.
While specific pruning is not required due to Alpha Calendula's naturally compact growth habit, deadheading spent blooms regularly will encourage more flower production throughout the season.
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