Calendula ‘Ivory Princess’Calendula

Guides/Calendula

Calendula ‘Ivory Princess’

Calendula officinalis

Days to cut

50–55 days

Status

trying

Catalog ID

CF-07

Seasons logged

1

First sown

2026-06-04

Double and semidouble 2–3 inch creamy blooms with hints of gold and contrasting dark center disks.

How it grows

Germination

Days to germ.
5–14 d
Soil temp
50–85 °F
Depth
0.25 in
Light for germ
dark
Viability
1 yrs

Culture

Days to maturity
50–55 dThis variety
Spacing
6–18 in
Height
18–26 in
Sun
Full Sun to Partial Shade
Frost
Hardy to ~25°F · to 25°F · hardy
Sow indoors
No
Outdoor / direct
Yes

Harvest

Cut stage
Pick when half to fully open; snip stems in the morning.
Vase life
6–8 d
Notes
Petals are edible. Yield: Estimated ~40 blossoms/plant

Other Observations

Notes not filed against a sowing. Everything else sits with its trial above.

No loose observations — every note belongs to a sowing.

This variety’s year

JanFebMarAprMayJunJulAugSepOctNovDec
Outdoor / directApr 23 – Jun 18
Bloom (from outdoor)Jun 11 – Sep 3
See the whole season

Progress

Sown 2026-06-04
Day 158 · past expected maturity (50–55)
This sowing

Seed source

Johnny's Selected SeedsSown 2026-06-04

Other Calendula varieties

Species overview