Heirloom

Pierrot White

Rhodanthe chlorocephala

Pierrot White (Rhodanthe chlorocephala)

Photo: Makoto hasuma · Wikimedia Commons · (CC BY-SA 3.0)

Pierrot White provides a distinctive, moody look for both cut and dried florals, though the plant stature is a bit short for cutting (approximately 18-24"). Productive plants produce relatively small, 1-2" upward-facing, daisy-like flowers with papery petals. The flowers have a long vase life and also make excellent dried flowers. Plants are basal branching, which makes the thin, wiry stems easy to cut and strip. Helipterum is also known as Acroclinium, immortelle, paper daisy, Australian everlasting, and everlasting daisy.

Harvest

55-65d

Days to harvest

📅

Sun

Full sun

☀️

Zones

1–11

USDA hardiness

🗺️

Height

18-24 inches

📏

Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Start Indoors
Transplant
Direct Sow
Start Indoors
Transplant
Direct Sow

Showing dates for Pierrot White in USDA Zone 7

All Zone 7 flower

Zone Map

Click a state to update dates

CANADAUSAYTZ3NTZ3NUZ3BCZ8ABZ3SKZ3MBZ3ONZ5QCZ4NLZ4NBZ5NSZ6PEZ6AKZ3MEZ4WIZ4VTZ4NHZ5WAZ7IDZ5MTZ4NDZ4MNZ4MIZ5NYZ6MAZ6CTZ6RIZ6ORZ7NVZ7WYZ4SDZ4IAZ5INZ6OHZ6PAZ6NJZ7DEZ7CAZ9UTZ5COZ5NEZ5ILZ6WVZ6VAZ7MDZ7DCZ7AZZ9NMZ7KSZ6MOZ6KYZ6TNZ7NCZ7SCZ8OKZ7ARZ7MSZ8ALZ8GAZ8TXZ8LAZ9FLZ9HIZ10

Pierrot White · Zones 111

What grows well in Zone 7?

Growing Details

Difficulty
Easy
Spacing12-18 inches
WaterModerate; drought-tolerant once established
SeasonWarm season annual
ColorWhite
Size18-24"

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 3April – MayJune – JulyJune – August
Zone 4March – AprilJune – JuneJune – July
Zone 5March – AprilMay – JuneMay – July
Zone 6March – AprilMay – JuneMay – July
Zone 7February – MarchApril – MayApril – June
Zone 8February – MarchApril – MayApril – June
Zone 9January – FebruaryMarch – AprilMarch – May
Zone 10January – JanuaryFebruary – MarchFebruary – April
Zone 1May – JuneJuly – AugustJuly – September
Zone 2April – MayJune – JulyJune – August
Zone 11January – JanuaryJanuary – FebruaryJanuary – March
Zone 12January – JanuaryJanuary – FebruaryJanuary – March
Zone 13January – JanuaryJanuary – FebruaryJanuary – March

Succession Planting

Direct sow every 14-21 days from your last frost date through early June, stopping when daytime highs are consistently above 85°F — Rhodanthe chlorocephala germinates poorly in hot soil and runs to seed quickly once heat sets in. In zone 7, that gives you roughly three usable sowing windows between April and early June if you move promptly. Germination takes 7-14 days at soil temps around 60-70°F, so time your next sowing before the current batch has even emerged.

One indoor sowing in February or March buys you an earlier first harvest — transplant out around the last frost date, spacing at 12 inches for cutting beds (tighter than the 18-inch maximum keeps stems straighter and reduces the need for staking). After that, direct sowing works fine and sidesteps transplant shock, which can set these back a full week or more if the roots get disturbed at planting.

Complete Growing Guide

Growing Pierrot White (Rhodanthe chlorocephala) flower. Light: Full sun. Hardy in USDA zones 1 to 11. Days to maturity: 55. Difficulty: Easy.

Harvesting

Pierrot White reaches harvest at 55 - 65 days from sowing per Johnny's Selected Seeds. Expect 18-24" at peak. As an annual, harvest continues until frost ends the season.

This is an ornamental variety — not grown for harvest. Enjoy in the garden landscape.

Storage & Preservation

Fresh Pierrot White stems last 2-3 weeks in a cool room with a vase of water; they're forgiving of room temperature but prefer 55-65°F if possible. Change water every 3-4 days and re-cut stems under running water every few days to maximize vase life.

For drying—the primary use of this variety—hang bundles upside-down in a warm, dark, dry location (attic, garage, or shed with good air circulation) for 1-2 weeks. The papery petals dry beautifully and retain color and structure for months or even years. Dried Pierrot White can be stored in cardboard boxes in a cool, dry, dark place for 6-12 months without significant deterioration. No special preservation (freezing, canning) is applicable to ornamental flowers; focus instead on the drying method, which is where this variety truly shines.

History & Origin

Rhodanthe chlorocephala commonly known as pink and white everlasting, is a flowering plant in the family Asteraceae. It is a small, tufted plant with blue-green leaves, white, pink or yellow flowers and grows in Western Australia and South Australia.

Advantages

  • +Easy to grow — beginner-friendly
  • +Quick harvest — ready in about 55 days
  • +Wide hardiness — grows in USDA zones 1-11

Companion Plants

Sweet Alyssum and Lobelia are the most practical companions here. Both stay low — under 6 inches — so they fill gaps at the base of Pierrot White's 18-24 inch stems without competing for light. Alyssum in particular draws in parasitic wasps and hoverflies that knock back aphid pressure, which matters more for everlastings than people expect. Aphids will find the soft new growth on Rhodanthe chlorocephala, and they do real damage fast on a plant with such a short production window. Neither Alyssum nor Lobelia is a heavy feeder, so they won't strip the lean, well-drained soil this variety prefers.

Marigolds and Cosmos work well alongside it for straightforward reasons — similar warm-season schedules, comparable drought tolerance once they're established, and neither one crowds or shades a plant that only gets to 24 inches tall. Catnip and Lavender pull double duty if you're also cutting for fragrance; their root zones stay compact enough to coexist at 12-inch spacing without much competition.

The harmful companions deserve attention. Black Walnut produces juglone, a root-zone toxin that damages or kills a wide range of annuals — NC State Extension puts the risk zone at 50-60 feet from the trunk's drip line. Eucalyptus releases allelopathic compounds through both leaf litter and root exudate that suppress germination, which is a particular problem for direct-sown Rhodanthe. Sunflowers are the less obvious one: their roots and decomposing leaves put out compounds that can set back neighboring annuals, so keep this variety at least 18-24 inches clear of any sunflower planting.

Plant Together

+

Marigolds

Repel aphids, whiteflies, and nematodes while attracting beneficial insects

+

Sweet Alyssum

Attracts beneficial insects like hoverflies and parasitic wasps that control pests

+

Nasturtiums

Act as trap crops for aphids and cucumber beetles, drawing pests away

+

Lobelia

Provides complementary blue color contrast and attracts pollinators

+

Petunias

Repel aphids, tomato hornworms, and squash bugs naturally

+

Cosmos

Attract beneficial insects and provide structural support without competing for nutrients

+

Catnip

Repels mosquitoes, ants, and aphids effectively

+

Lavender

Repels moths, fleas, and mosquitoes while attracting beneficial pollinators

Keep Apart

-

Black Walnut

Produces juglone toxin that inhibits growth and can kill sensitive plants

-

Eucalyptus

Releases allelopathic compounds that suppress growth of nearby plants

-

Sunflowers

Produce allelopathic chemicals and compete aggressively for water and nutrients

Troubleshooting Pierrot White

What you'll see, why it happens, and what to do about it.

Stems rotting at soil level, plants collapsing suddenly in cool, wet spring weather

Likely Causes

  • Damping off (Pythium or Rhizoctonia spp.) — fungal rot that thrives in cold, waterlogged soil
  • Overwatering or planting into poorly drained ground before soil warms

What to Do

  1. 1.Pull and discard collapsed seedlings immediately — they won't recover
  2. 2.Let the soil surface dry out between waterings; Rhodanthe hates wet feet
  3. 3.If starting indoors, use a sterile seed-starting mix and ensure trays drain freely — don't let them sit in standing water
Flowers fading fast or failing to open fully, papery bracts staying closed even in warm weather

Likely Causes

  • Harvested or transplanted too late — buds need to be cut at the half-open stage to develop properly
  • Insufficient sun — fewer than 6 hours of direct light daily stunts petal development in this species

What to Do

  1. 1.Cut stems for drying when the outermost petals are just beginning to peel back, not when fully open
  2. 2.Choose a bed with unobstructed full sun — even a few hours of afternoon shade reliably produces tight, underdeveloped heads on this variety
  3. 3.Hang cut stems upside down in bunches of 8-10 in a dry, ventilated space at around 65-70°F

Frequently Asked Questions

How long does Pierrot White take to grow from seed to flower?
Pierrot White seeds germinate in 7-14 days and reach bloom stage in 55-65 days total. If you start seeds indoors 4-6 weeks before your last frost, transplant after hardening off, and move seedlings outside when frost danger passes, you'll typically see first flowers 6-8 weeks after outdoor planting. Direct sowing after frost danger results in blooms 7-10 weeks from sowing.
Is Pierrot White good for beginners?
Yes. These are among the easiest flowers to grow. Seeds sprout reliably, seedlings transplant well, and established plants are drought-tolerant and pest-resistant. The main requirement is full sun and good drainage. They're also forgiving of beginner arranging mistakes—the papery petals and thin stems are naturally flexible and long-lasting, making them ideal for learning arrangement techniques.
Can you grow Pierrot White in containers?
Absolutely. Use a 5-7 gallon pot or larger with well-draining potting soil. Space 1-2 plants per pot. Provide full sun (at least 6-8 hours daily) and water when soil surface dries to the touch. Container-grown plants may bloom slightly later than in-ground plants due to root constraints, but they still perform well and are excellent for patios, decks, and small spaces.
What's the difference between Pierrot White and other white everlasting flowers?
Pierrot White (Helipterum roseum) is distinguished by its very compact 18-24" stature, thin wiry basal-branching stems, and papery 1-2" upright-facing daisies. Other everlastings like Xerochrysum bracteatum (strawflower) grow taller and have more substantial flowers. Pierrot White's advantage is its florist-friendly thin stems and prolific branching from the base, making it easier to harvest many usable stems from a single plant.
When should I plant Pierrot White seeds?
Start seeds indoors 4-6 weeks before your last spring frost date, or direct sow after all frost danger has passed and soil warms to 60°F or higher. In warm zones (9-11), you can direct sow in late winter for spring blooms. These are frost-tender annuals, so timing to your local frost date is critical—planting too early results in seedling death or stunted growth.
How do I dry Pierrot White for long-term storage?
Bundle 5-10 stems together with a rubber band and hang upside-down in a warm, dark, airy space (attic, garage, shed) for 10-14 days. Once papery-dry, store bundles in a cardboard box in a cool, dry location away from direct light. Properly dried Pierrot White retains color and structure for 6-12 months, making it ideal for dried arrangements, wedding florals, and craft projects.

Growing Guides from Wind River Greens

Where to Buy Seeds

Sources & References

External authority sources used in compiling this guide.

See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.

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