Cream Stock (Matthiola incana) - yellow flowers, illustrated plant cardIllustration

Cream Stock

Matthiola incana

Cream Stock blooms from April through June.

Bloom calendar
Bloom time
Apr–Jun
not yet checked
Hardiness
Zones 2–11
not yet checked
Sun
Full sun
not yet checked
Water
Moderate water
not yet checked
Mature size
20 in × 8 in
not yet checked
Type
Annual
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Cream Stock

Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 2–11. Expect it to reach about 20 in tall and 8 in wide at maturity, in roughly 1 year (not yet checked).

No toxicity note is on file for Cream Stock. That is not a clearance: check its safety for people and pets before planting.

Verification
What this means

Written with AI assistance and not yet checked plant by plant against recorded sources, so treat every fact above as a starting point. Its scientific name was checked against botanical registries, an audit keeps its values consistent with the rest of the library, and a July 2026 review re-read the main facts of every plant then in the library against horticultural authorities without recording a source for each, which is why none of that counts as checked here. The source-by-source check is working through the whole library in the open, and a checked plant says so in this row.

When to plant Cream Stock

Cream Stock is a cool-season annual: plant it out in early spring as soon as the soil can be worked, a few weeks before the last frost, since it takes light frost and fades in summer heat; in mild-winter zones it also goes in during fall. In zone 6, the middle of its hardy zones 2 to 11, that means March or April. It flowers from April to June.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Cream Stock get?

Illustration of Cream Stock drawn to scale beside an adult20 intall5 ft 7 inan adult8 inwide
About 20 in tall and 8 in wide at maturity: knee-high beside an adult.

See Cream Stock in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Cream Stock

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space Cream Stock about 8 in apart, center to center, so each plant has room to reach its full width.

Plant them
8 in apart
Per 10 sq ft
about 23
4 by 8 ft bed
about 72

Add Cream Stock to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

The Stock group

One of 7 in the Stock group. Same genus, similar care.

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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.

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