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

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 zonesAnnual

from Zinnia · “Annual” — Growing Zinnias from Seed | Johnny's Selected Seeds

Spacing9–12 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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