Flower Garden · Seed to Bloom

How to grow globe amaranth

Grow globe amaranth for heat-tolerant papery blooms that perform in sunny beds and hold their color beautifully when dried.

Use warm germinationPinch for branchingCut for fresh or dried use
Botanical illustration of purple red orange salmon and cream globe amaranth
Botanical nameGomphrena globosaGlobe amaranth
Sow depth⅛ inchCover lightly
Germination7–14 days70–75°F
Spacing10–12 inchesQIS types
HarvestFully colored headsFresh or dried

Flower profile

Turn summer heat into lasting color.

Gomphrena thrives once soil and nights warm. Its papery heads resist weather, attract pollinators, and dry with little loss of color.

Warmth drives the cropCold soil and cool nights stall seedlings. Start warm indoors or wait until outdoor soil is thoroughly warmed.

globe amaranth at a glance

From seed to a productive garden display

Planting

Sow warm and pinch for many stems.

Cover seed lightly, grow seedlings brightly, and transplant after frost when soil is warm.

01

Cover about ⅛ inch

Maintain warm even moisture.

02

Pinch above 4–6 leaf pairs

Encourage branching cutting stems.

03

Space 10–12 inches apart

Choose full sun and drained soil.

Ongoing care

Keep plants healthy and productive

Give full sun and heat

Warm bright conditions produce sturdy stems.

Water through establishment

Mature plants tolerate short dry periods.

Feed sparingly

Rich soil can create soft growth.

Cut regularly

Harvest encourages side stems.

Season checkpoints

Follow the plant’s visible progress.

7–14 days

Seedlings emerge

4–6 leaf pairs

Pinching stage

Warm summer

Heads color

Firm papery heads

Harvest begins

Cutting and display

Cut when heads are fully colored.

For fresh use, cut firm colored heads on long stems. For drying, strip foliage and hang small bundles upside down in darkness.

  1. Harvest after dew dries.
  2. Cut above a branching node.
  3. Dry with good airflow.

Urban Farmer selections

Choose a Gomphrena form and palette

Questions flower gardeners ask

Globe amaranth growing FAQ

When should globe amaranth be started?

Start 6–8 weeks before frost.

How deep should seed be planted?

Cover about ⅛ inch.

How long does germination take?

Usually 7–14 days.

When can it go outside?

After frost when nights and soil are warm.

How far apart should plants be?

Space about 10–12 inches.

Should plants be pinched?

Yes, pinching can increase stems.

Does it tolerate heat?

Yes, it thrives in summer heat.

When should heads be cut?

When fully colored and firm.

Can flowers be dried?

Yes, they hold color well.

Is it good for pollinators?

Yes, flowers attract bees and butterflies.

Ready to plant?

Grow heat-loving color for fresh and dried bouquets.

Shop globe amaranth →