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Calendula 6 Pack Seedling Tray (Various Colours)
Calendula 6 Pack Seedling Tray (Various Colours)
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- Botanical name and family: Calendula officinalis; calendula is a member of the Asteraceae–daisy family.
- Type of plant: Calendula is a herbaceous annual.
- Growing season: Spring, summer, and fall
- Growing zones: Calendula grows in zones 3 to 10.
- Hardiness: Calendula is resistant to cold weather down to 25°F; calendula is a cool-weather plant; it does not do well in the heat.
- Plant form and size: Calendula plants are mounding plants 12 to 15 inches tall with narrow long leaves that are aromatic and slightly sticky. There are hybrid dwarf varieties half the size.
- Flowers: Calendulas have bright yellow or orange daisy-like double or semi-double flowers 2 to 4 inches across. There is one flower on each stem.
- Bloom time: Calendula blooms from midsummer to after frost. Flowers close at night and reopen in the morning.
- Leaves: Calendula has pointed oblong or oval leaves to 3 inches long on angular stems; leaves have smooth edges and a prominent middle vein. The upper leaves clasp the stalk.
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- Best location: Calendula prefers full sun in the northern regions and partial shade in southern regions. Calendula is intolerant of intense heat and crowding. In hot regions calendula may die in midsummer; plant calendula in dappled shade in hot summer regions.
- Soil preparation: Plant in compost-rich, well-drained, and moisture-retentive soil. Calendulas grow best where the soil has a pH of 6.6.
- Seed starting indoors: Calendulas can also be started indoors and transplanted out to the garden when the soil is workable; avoid transplanting seedlings into the garden when temperatures are hot. In Zone 5 or colder, start seeds indoors about 8 weeks before the last spring frost date. Seeds take 7 to 14 days to germinate. In southern regions, sow seed outdoors in fall.
- Outdoor planting time: In Zone 5 or colder, transplant calendula seedlings to the garden a week or two before the last spring frost. In Zones 5 to 6, plant seeds outside after the soil warms to 60° In Zones 7 to 10, sow seeds outdoors in fall, where they are to grow.
- Planting depth: Sow seeds ¼ to ½ inch deep.
- Spacing: Space calendula plants 8 to 10 inches apart.
- How much to plant: Grow 6 calendula plants for culinary use; grow 12 plants for preserving.
- Companion planting: It is said that calendula protects vegetables against asparagus beetles and tomato hornworms. Calendulas attract aphids, whiteflies, and thrips; use calendula as a trap plant to keep pests away from nearby herbs and vegetables.
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