Forget-me-nots are usually biennial, which means they flower and die in the second year. This is when they set seed too, which they wantonly release everywhere. Once you have forget-me-nots in your garden, it is rarely necessary to plant seed. The little plants can be left to overwinter and then get moved to wherever you want them in early spring.
Forget-me-nots like plenty of moisture, but not boggy soil. They have few pest or disease issues, but do tend to get powdery mildew at the end of their life. Plants need to experience a chilling period to force buds and large enough to produce flowers too, which is usually after a year of growth.
When to Plant Forget-Me-Nots
Who doesn’t like forget-me-nots? True, they aren’t very attractive when they die back after blooming but, in the meantime, they have an uncomplicated, endearing nature that is trouble free and easy. Forget-me-nots are very hardy little plants that die back in winter but will re-sprout in spring. Plants that are at least a year old will flower the next spring. These little blue bloomers are so unfussy you can plant them almost anywhere at any time and expect some flowers within the next year and a half.
Tips on Forget-Me-Not Seed Planting
Pick a location with partial shade or at the very least, protection from the hottest rays of the day. You may also sow the seeds indoors three weeks before the last expected frost. This will give you earlier blooms. For outdoor sowing, plant seeds with 1/8 inch (3 ml.) of soil lightly sprinkled over them in early spring when soil is workable.
Start seed indoors 4-6 weeks before last frost or direct seed outdoors as soon as soil can be worked. Seed germinates best when soil temps are between 65-80°F. Sow seeds 2-4″ apart and 1/16″ deep. Seeds will sprout in 5-10 days. Thin seedlings so that mature plants are 4-6″ apart.
Forget-me-not is a perennial that tolerates a wide variety of soils. Choose a site with full sun to partial shade. Provide low to moderate moisture. Drought tolerant once established.
Forget-me-not seed matures late summer-fall. Seed is ready to harvest when brown and dry. Store seeds in a cool, dry place. Seeds are viable for 1 year.
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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.
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