Forget-me-not 'Semperflorens' is a dwarf cultivar of Myosotis scorpioides bred specifically for continuous flowering and compact growth. This hardy perennial produces delicate, showy blue flowers with yellow or white eyes from spring through summer, reaching just 6 to 9 inches tall and spreading 9 to 12 inches wide. Hardy in zones 5 through 9, it thrives in moist to wet soils and tolerates both full sun and partial shade, making it equally at home in cottage gardens, along stream banks, or as a rain garden specimen. The 'Semperflorens' designation refers to its exceptionally long bloom window and floriferous nature, with flowers appearing from April through August in most climates, though peak bloom typically occurs June to August.
6
Partial Sun
Moderate
5-9
9in H x 12in W
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Low
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The genus name itself tells this plant's story: Myosotis derives from Greek words meaning 'mouse ear,' referring to the soft, pointed foliage that supposedly resembles a rodent's ear. 'Semperflorens' is a dwarf form selected and bred for relentless flowering and bushier growth, delivering blooms over an extended season rather than the brief spring show of standard varieties. This cultivar genuinely tolerates wet conditions that would challenge most ornamentals, even thriving in up to 3 inches of standing water, and once established it self-seeds generously to fill in gaps naturally. Deer and rabbits ignore it entirely, and butterflies visit consistently, bringing movement and life to damp corners of the garden.
Forget-me-not 'Semperflorens' earns its place in gardens primarily as a living boundary plant and ground cover in shaded or partially shaded perennial borders, where its low mounding habit creates soft transitions between wooded edges and cultivated beds. Traditional cottage gardens feature it prominently as a self-sowing filler that naturalizes readily once established. The plant excels in rain gardens and water garden settings, where its tolerance for consistently moist to wet soil becomes an asset rather than a constraint. Container cultivation works well too, particularly for water garden displays where planting in pots allows gardeners to control the creeping rhizome spread. It makes an excellent choice for naturalizing along stream banks and muddy pond margins, and many gardeners deliberately allow it to reseed throughout mixed borders for spontaneous, repeating patches of spring and summer color.
No timeline data available yet for this variety.
Start seed indoors approximately 8 to 10 weeks before your last spring frost date for bloom the same year. Transplant seedlings outdoors as soon as soil can be worked in spring.
Transplant hardened-off seedlings into the garden in spring as soon as soil is workable. Space plants 6 inches apart in all directions. Water thoroughly after transplanting and keep soil consistently moist during establishment.
Direct sow seed in late summer for flowers the following spring. Scatter seed in prepared beds with organically rich, moist soil and keep the seedbed consistently moist until germination and establishment.
Pinch young plants early in the growing season to promote bushier, more branched growth and denser flowering. Beyond this initial pinching, no formal pruning is needed. Plants will self-seed; if you wish to prevent excessive self-seeding or control spread, remove spent flower heads before seed sets.
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“Forget-me-nots carry profound romantic weight in European garden tradition. The genus Myosotis scorpioides is native to Europe and Asia, and the species name 'scorpioides' refers to the flower cymes, which coil like a scorpion's tail when budding and in early bloom. The 'Semperflorens' cultivar was developed to address a limitation of wild and heirloom forget-me-nots: their brief, concentrated flowering period. Breeders selected for dwarfer stature, increased flower production, and extended bloom time, resulting in a plant that flowers continuously throughout the season rather than exhausting itself in a single spring flush. This cultivar represents horticultural refinement of an already beloved species, adapting an old garden favorite to modern preferences for longer color.”