Heirloom

King Size Gold

Helichrysum bracteatum

Abstract golden organic sculpture with intricate details

King Size Gold is a heirloom flower variety prized for its large, vibrant golden-yellow blooms that reach full maturity in 75-85 days. This easy-to-grow cultivar thrives in full sun with minimal soil requirements, tolerating poor conditions while avoiding heavy clay. The flowers develop substantial size, making it a striking ornamental choice for garden displays and arrangements. Notable for its resilience against common pests including aphids and occasional thrips.

Harvest

75-85d

Days to harvest

📅

Sun

Full sun

☀️

Zones

1–11

USDA hardiness

🗺️

Height

30-36 inches

📏

Planting Timeline

Zone:

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 King Size Gold in USDA Zone 7

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Zone Map

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King Size Gold · Zones 1–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing12-18 inches

SoilWell-drained, average to lean soil; tolerates poor soil, dislikes heavy clay

WaterLow to moderate; drought tolerant once established

SeasonWarm season annual

ColorVibrant gold

Size2-2 1/2"

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 1	May – June	July – August	July – September	—
Zone 2	April – May	June – July	June – August	—
Zone 11	January – January	January – February	January – March	—
Zone 12	January – January	January – February	January – March	—
Zone 13	January – January	January – February	January – March	—
Zone 3	April – May	June – July	June – August	—
Zone 4	March – April	June – June	June – July	—
Zone 5	March – April	May – June	May – July	—
Zone 6	March – April	May – June	May – July	—
Zone 7	February – March	April – May	April – June	—
Zone 8	February – March	April – May	April – June	—
Zone 9	January – February	March – April	March – May	—
Zone 10	January – January	February – March	February – April	—

Succession Planting

King Size Gold blooms over a long stretch and keeps producing if you harvest the papery flowers regularly — cutting stems back to a lateral bud every 10 to 14 days is enough to keep the plant working. One sowing per season is the standard approach; start seeds indoors in February or March, transplant after last frost in April or May, and that single planting will carry through to fall. If you want staggered color and a backup in case early plants stall, direct sow a second round in late April. Those plants typically hit peak bloom around the time your first planting starts looking ragged in August's heat, so the timing works out cleanly.

Complete Growing Guide

King Size Gold strawflowers thrive on neglect once established, but giving them a strong start pays off in stem length and bloom count. Choose a site with at least 6-8 hours of direct sun — flowering and stem strength suffer noticeably in partial shade. These Australian natives prefer lean to average soil; overly rich ground produces floppy, leafy plants with fewer blooms. Work in a modest amount of compost if your soil is heavy, and ensure excellent drainage. Strawflowers will rot in soggy ground, so amend clay soils with coarse sand or plant on a slight mound.

Start seeds indoors 6-8 weeks before your last frost date for the longest season of bloom. Surface-sow the tiny seeds — they need light to germinate — and press gently into moist seed-starting mix. Cover with a humidity dome and keep at 70-75°F; expect germination in 7-14 days. In zones 7 and warmer, you can also direct sow after soil reaches 65°F, but indoor starts give you a four-to-six-week head start on flowering.

Harden off seedlings over a week, then transplant after all danger of frost has passed, spacing plants 12-18 inches apart. Closer spacing produces longer, straighter stems for cutting — useful if your goal is bouquets rather than landscape display. Water deeply at transplanting, then back off; King Size Gold is drought-tolerant once roots establish and actively dislikes consistently wet soil.

Fertilizing should be minimal. A single light feeding of balanced fertilizer at transplant is plenty — skip the high-nitrogen products entirely, as they push lush foliage at the expense of flowers and weaken stems. If your soil is reasonably fertile, you can skip feeding altogether.

Because plants reach 30-36 inches and become heavy with bloom, staking or netting is wise in windy sites or for cut-flower production. Install Hortonova netting or corral plants with stakes and twine when they hit 12 inches; trying to stake later damages stems. Pinch the central leader when plants are 8-10 inches tall to encourage branching and dramatically increase usable stem count.

The most common mistake is overwatering and overfeeding — treat these like a Mediterranean herb, not a hybrid tea rose. The second mistake is harvesting too late; flowers continue to open after cutting, so picking at the right stage (see harvest guide) is critical. Deadhead or harvest continuously to keep plants producing right up until a hard freeze.

Harvesting

Timing is everything with strawflowers. For fresh bouquets, cut when the outer two or three rows of bracts have unfurled but the center is still tight and showing a button of unopened bracts — the flower will continue opening in the vase. For drying, this stage is essential; flowers harvested fully open will reflex backward and look untidy once dried, exposing the seed head.

Harvest in the morning after dew has evaporated, when stems are fully turgid. Use sharp snips and cut stems as long as possible, taking the cut just above a pair of leaves or side branches to encourage continued branching and bloom. Plants will produce more usable stems if you cut aggressively rather than deadhead lightly.

Strip lower leaves immediately. For dried use, bundle 8-10 stems with a rubber band (it tightens as stems shrink) and hang upside down in a dark, dry, well-ventilated space for 2-3 weeks. Stems often weaken at the flower head as they dry, so many growers wire stems before drying for arrangement work.

Storage & Preservation

Fresh-cut King Size Gold lasts 7-10 days in a clean vase with cool water; recut stems at an angle and refresh water every two days. There's no need for floral preservative — these stems aren't heavy water users. Store in a cool room out of direct sun to maximize vase life.

The defining preservation method is air-drying. Hung upside down in a dark, dry space at 60-75°F with good airflow, blooms dry in 2-3 weeks and retain their gold color for two or more years if kept out of direct light. For craft work, you can also remove flower heads and wire them with 20-22 gauge floral wire before drying, then dust finished arrangements occasionally to prevent fading. Silica gel drying produces an even more pristine result for showpiece arrangements but is unnecessary for general use.

History & Origin

Strawflowers (Xerochrysum bracteatum, formerly Helichrysum bracteatum and Bracteantha bracteata) are native to Australia, where they grow as wildflowers across a huge range of habitats. European botanists introduced them to cultivation in the early 1800s after specimens reached England and France, and by the mid-nineteenth century they had become a staple of Victorian gardens, where the craze for 'everlasting' flowers and elaborate dried arrangements made them a fixture of formal cottage borders.

King Size Gold belongs to the King Size series, an open-pollinated heirloom strain selected for unusually large, fully double blooms on tall, strong stems suited to commercial cut-flower production. The series has been grown for decades and remains a benchmark against which newer strawflower introductions are measured. Its persistent popularity among florists and dried-flower growers reflects both the reliability of the strain and the timeless appeal of its papery, jewel-toned blooms — a direct horticultural link to the Victorian everlasting bouquets that first made the species famous.

Advantages

+Fully double 2-2½ inch blooms on long, straight stems ideal for cutting
+Retains vivid gold color for 2+ years when properly dried
+Drought-tolerant and thrives in lean soils where other cut flowers struggle
+Cut-and-come-again habit produces blooms from midsummer to hard frost
+Open-pollinated heirloom — you can save seed and reproduce the variety reliably
+Largely ignored by deer and rabbits
+Tolerates heat and humidity better than most cut-flower annuals

Considerations

-Tall stems flop without staking or netting, especially after rain
-Easy to mis-time harvest — fully open flowers look poor once dried
-Stems can weaken at the flower head during drying, often requiring wiring
-Susceptible to root rot in heavy or poorly drained soils
-Tiny seeds require surface sowing and careful moisture management to germinate

Companion Plants

Marigolds and nasturtiums earn their spot here — marigolds push back aphids through sulfur-based scent compounds and draw in predatory wasps, while nasturtiums act as a trap crop, pulling aphid pressure onto themselves so your helichrysum stays clean. Zinnias and cosmos add pollinator traffic without competing for water, which matters because King Size Gold runs lean by design. In our zone 7 Georgia garden, lavender and catmint slot in naturally alongside it — same full-sun, low-water requirements, no resource tug-of-war. Black walnut is a hard no; juglone, the allelopathic compound its roots release, moves through soil far enough to reach anything planted within 50 feet, and helichrysum won't shrug it off.

Plant Together

Marigolds

Repel aphids, whiteflies, and nematodes while attracting beneficial insects

Nasturtiums

Act as trap crops for aphids and cucumber beetles, also repel squash bugs

Zinnias

Attract pollinators and beneficial predatory insects like ladybugs and lacewings

Cosmos

Draw beneficial insects and provide natural pest control without competing for nutrients

Sweet Alyssum

Attracts hoverflies and parasitic wasps that control aphids and other soft-bodied pests

Lavender

Repels moths, fleas, and mosquitoes while attracting pollinators

Catmint

Deters ants, aphids, and rodents while being non-invasive unlike catnip

Petunias

Repel aphids, tomato hornworms, and squash bugs naturally

Keep Apart

Black Walnut Trees

Release juglone toxin that inhibits growth and can kill many flowering plants

Eucalyptus

Produces allelopathic compounds that suppress growth of nearby plants

Sunflowers

Can stunt growth of nearby plants through allelopathy and compete heavily for nutrients

Pests & Disease Resistance

Common Pests

Aphids, occasional thrips

Diseases

Root rot in wet soils, downy mildew, occasional powdery mildew

Troubleshooting King Size Gold

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

Stems turning brown and mushy at the soil line, lower leaves wilting and yellowing despite adequate water

Likely Causes

Root rot (Pythium or Phytophthora spp.) — almost always triggered by poorly drained soil or overwatering
Planting too deep or mulching tight against the stem, trapping moisture at the crown

What to Do

1.Pull the plant — if the roots are brown and smell sour, it won't recover; remove it and don't replant helichrysum in that spot this season
2.Amend beds with coarse sand or perlite before replanting; King Size Gold needs soil that drains fast
3.Keep mulch at least 2 inches away from the base of each stem

White powdery coating on leaves and upper stems, usually showing up in late summer when nights cool down

Likely Causes

Powdery mildew (Golovinomyces or Erysiphe spp.) — favored by warm days, cool nights, and low airflow
Crowded spacing below 12 inches that prevents air from moving through the planting

What to Do

1.Thin or stake plants so air moves between them — 12 to 18 inches apart is the minimum, not a suggestion
2.Spray affected foliage with a diluted neem oil solution (2 tsp per quart of water) in the early morning so leaves dry before nightfall
3.Strip and trash heavily coated leaves; don't compost them

Frequently Asked Questions

How long does King Size Gold strawflower take to grow?▼

From seed to first bloom, expect 75-85 days. Starting seeds indoors 6-8 weeks before your last frost gets you flowers by midsummer in most zones, with continuous bloom until a hard freeze. Direct-sown plants in warmer zones flower a few weeks later but catch up quickly. Once flowering starts, plants produce continuously for 8-12 weeks if harvested or deadheaded regularly.

Is King Size Gold good for beginners?▼

Yes — strawflowers are among the most forgiving cut flowers you can grow. They tolerate poor soil, drought, heat, and benign neglect, and they aren't bothered by most pests. The only real beginner pitfalls are overwatering, overfertilizing, and harvesting at the wrong stage for drying. Avoid those three mistakes and King Size Gold practically grows itself, making it an excellent first cut-flower variety.

Can you grow King Size Gold in containers?▼

Yes, though the 30-36 inch height and need for staking make containers less ideal than a garden bed. Choose a pot at least 12 inches deep and 14 inches wide, use a free-draining potting mix (avoid moisture-retentive 'pro' mixes), and limit feeding. One plant per 3-gallon container works well. Container-grown plants flower reliably but tend to produce shorter stems than in-ground specimens.

When should I cut King Size Gold strawflowers for drying?▼

Cut when only the outer two or three rows of bracts have opened and the center still shows a tight, unopened button. Strawflower bracts continue opening after cutting — sometimes dramatically — so flowers harvested fully open will reflex backward and look ragged once dry. Morning is the best time to cut, after dew has evaporated but before heat stresses the stems.

Do strawflowers come back every year?▼

King Size Gold is grown as an annual in nearly all of North America. In its native Australia and in USDA zones 9-11, plants can behave as short-lived perennials, returning for a second season before declining. Elsewhere, frost ends the plant, but King Size Gold self-seeds readily in mild climates, and saved seed germinates easily — so a single planting often becomes a recurring patch.

How do you keep strawflowers from flopping?▼

Install support early. When plants reach 8-12 inches, set a layer of Hortonova netting horizontally above the bed, or corral groups of plants with stakes and twine. Pinch the central growing tip at the same height to force branching, which produces more but slightly shorter stems that support each other. Avoid high-nitrogen fertilizer, which weakens stems further. Lean soil and full sun produce the sturdiest plants.