Flower Garden · Seed to Bloom

How to grow stock

Grow fragrant stock in rose, apricot, cream, yellow, and lavender-blue for cool-season flower spikes and elegant cutting stems.

Start cool and brightProtect from heatCut as lower florets open
Vintage botanical illustration of rose apricot cream yellow and lavender stock flower spikes
Botanical nameMatthiola incanaGarden stock
Sow depth⅛ inchCover lightly
Germination7–14 daysAbout 65–70°F
Spacing6–9 inchesCut-flower rows
BloomCool seasonHeat shortens display

Flower profile

Use cool weather to protect fragrance and stem quality.

Stock forms fragrant spikes of single or double flowers and performs best when seedlings establish in cool bright conditions. Plant early enough that stems develop before sustained heat reduces quality.

Stock is a cool-season flowerWarm nights and high heat shorten stems and speed the crop. In mild climates, fall or winter scheduling may be preferable to a late spring planting.

stock at a glance

From seed to a full flower display

Planting

Sow lightly covered seed and grow transplants cool.

Start indoors about 8–10 weeks before the intended planting date. Cover seed lightly and move seedlings into strong light promptly after emergence.

01

Cover seed about ⅛ inch

Maintain even moisture and mild temperatures for steady emergence.

02

Keep seedlings compact

Use bright light, airflow, and restrained fertility rather than warm soft growth.

03

Plant 6–9 inches apart

Set hardened plants outdoors in cool weather with open airflow.

Ongoing care

Keep plants blooming strongly

Give full sun in cool weather

Strong light builds straight spikes and good color.

Maintain even moisture

Avoid drought checks while buds and stems are developing.

Support dense plantings

Use horizontal netting when long cutting stems may lean.

Watch temperature

Harvest promptly as warmth accelerates opening.

Season checkpoints

Follow the plant’s visible progress.

7–14 days

Seedlings emerge

8–10 weeks

Transplants are ready

Cool growth

Flower spikes form

Lower florets open

Cutting stage

Cutting and display

Cut when several lower florets have opened.

Cut stock when the lowest three to five florets are open and the upper buds remain firm and colored. Strip submerged foliage and place stems immediately in clean water.

  1. Cut during the cool morning.
  2. Use clean deep water.
  3. Keep harvested stems cool and upright.

Urban Farmer selections

Compare three stock colors for cutting

Questions flower gardeners ask

Stock growing FAQ

When should stock seed be started?

Follow the seasonal guidance above and the selected product description.

How deep should seed be planted?

Cover seed lightly, about ⅛ inch.

How long does germination take?

Usually 7–14 days around 65–70°F.

Does it need full sun?

Full sun is preferred for strong stems and abundant flowers.

How far apart should plants be?

Space about 6–9 inches apart for cutting.

Can it grow in containers?

Yes, with enough mature root room and reliable drainage.

How often should it be watered?

Water during establishment and whenever the active root zone begins to dry.

Should it be fertilized?

Use moderate balanced fertility and avoid soft excess growth.

Can it be direct sown?

Direct sowing may work in a suitable local season, but transplants give more control.

Will it return next year?

Treat it according to the species, winter hardiness, and local climate.

Ready to plant?

Bring cool-season fragrance and elegant spikes to the cutting garden.

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