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s Giant Carmine Rose

CultivarZinnia 's Giant Carmine Rose'

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Zinnia (the genus)
Photo: শক্তিশেল · CC BY-SA 4.0 · Wikimedia Commons

Fact sheet

every fact quoted from its source
Days to germination3.5–6 days

from Zinnia · “Seeds typically germinate in 4 to 7 days” — Planting and Growing Zinnias for Bold Blooms All Season | The Old Farmer's Almanac

Days to maturity60–90 days

from Zinnia · “60–90 days from direct sowing” — How to Grow Zinnia: 60–90 days — SoilStack

Germination temperature70 °F

from Zinnia · “Zinnias germinate and grow best when soil temperatures are consistently around 70°F.” — Planting and Growing Zinnias for Bold Blooms All Season | The Old Farmer's Almanac

Light6+ hours

from Zinnia · “6+ hours of sun” — How to Grow Zinnia: 60–90 days — SoilStack

Wateroccasionally, drought-tolerant

from Zinnia · “Water occasionally, though these plants are fairly drought-tolerant.” — How to Plant and Care for Zinnia Flowers

Soil pH6.3–6.8

from Zinnia · “pH: 6.3-6.8 preferred” — Growing Zinnias from Seed | Johnny's Selected Seeds

Hardiness zonesZone 3A, Zone 3B, Zone 4A, Zone 4B, Zone 5A, Zone 5B, Zone 6A, Zone 6B, Zone 7A, Zone 7B, Zone 8A, Zone 8B, Zone 9A, Zone 9B, Zone 10A, Zone 10B, Zone 11A, Zone 11B

from Zinnia · “Zone Planting Guide” — How to Grow Zinnia: 60–90 days — SoilStack

Spacing9–15 in

from Zinnia · “Space plants about 12 inches apart in home gardens” — Planting and Growing Zinnias for Bold Blooms All Season | The Old Farmer's Almanac

Height12–37.5 in

from Zinnia · “Most varieties grow 1 to 3 feet tall” — Planting and Growing Zinnias for Bold Blooms All Season | The Old Farmer's Almanac

Propagationseed

from Zinnia · “Zinnias are best grown from seed” — Planting and Growing Zinnias for Bold Blooms All Season | The Old Farmer's Almanac

Start indoors4–5 weeks before last frost

from Zinnia · “4 weeks before planting out” — Growing Zinnias from Seed | Johnny's Selected Seeds

Transplantlate May/early June

from Zinnia · “Plant out when danger of frost is passed in late May/early June” — How to grow zinnia / RHS Growing Guide

Ready whenBefore completely open. Stem is firm from point of cut to just below the bloom.

from Zinnia · “Before completely open. Stem is firm from point of cut to just below the bloom.” — Growing Zinnias from Seed | Johnny's Selected Seeds

Pestsjapanese beetles, aphids, spider mites

from Zinnia · “Zinnias are quite resilient, but it’s possible for them to struggle with pests like Japanese beetles, aphids, and spider mites.” — How to Plant and Care for Zinnia Flowers

Companionssunflowers, cosmos

from Zinnia · “Some examples of annuals include sunflowers, cosmos, sweet peas and zinnia” — How to grow zinnia / RHS Growing Guide

s Giant Carmine Rose hasn't been researched on its own yet; these facts are for the genus as a whole.

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