1/17/2024 0 Comments Zinnia seeds in potsPlace under grow lights or fluorescent tubes, leaving lights on for 14 to 16 hours per day. Insert zinnia seeds about ½ inch deep and cover with the mix. Old Mexico bears mostly double flowers - two layers of petals rather than one - while Persian Carpet produces 2-inch double and semi-double blooms in bold autumnal shades. Zinnias are sensitive to frost, so do not seed until the last frost has passed in your area. In clean seed starting trays (with drainage holes), add moistened seed starting mix. Varieties such as Old Mexico and Persian Carpet have the rich golds, yellows, reds, and copper colors that foreshadow the coming of fall. As they all spread to about 1 or 1 1/2 feet, a good rule of thumb for spacing is to set one zinnia in a 6-inch pot, three plants in a 10-inch pot and up to five. These can be sown inside in seed flats, egg cartons or even small cups. Unlike most zinnias, which are sold in multicolored mixes, Profusion is available in single colors of orange, cherry, and white.įor a zinnia with a different look that resists powdery mildew valiantly, try growing the narrow-leaved Star Series or the Crystal Series, which tolerates drought and grows well from seed. Starting zinnia seeds indoors is possible as well. The neatly mounded shape, consistent color, and disease and drought tolerance of Profusion zinnias have won over researchers, landscapers, and home gardening experts. This variety is not towering, but not cowering either it grows to a robust 30 inches-tall, in an in-your-face blend of red and gold. You'll find plenty of mid-height zinnias to choose from but our favorite is the Zowie! Gold Flame. If you want big, bright, and bold flowers, you'll love Benary's Giant, even in the saturated air of a Pennsylvania July, these Goliaths remain mildew-free. Need a low growing flower with simple yet colorful petals? Plant dwarf zinnia seeds, which can grow as short as 10-inches tall. Want tall, back-of-the-border plants with huge blooms like a dahlia? Plant some giant zinnias, which can reach up to 4 feet tall. They look especially beautiful when you sprinkle your seeds among a mix of cut flowers such as dahlias, marigolds, asters, and petunias. Thin (prick out) to further pots when seedlings are large enough to handle. From petunia pink to daisy yellow, zinnias come in every eye-catching hue (except true blue) so you can match them with your favorite perennial or annual flowers, foliage plants, and herbs. Maintain a gentle warmth, 18-20oC (55-68oF).
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