How deep to plant strawberries, and which way the crown faces: three checks for planting day

Most strawberry seedlings that die after transplanting were not poor plants — they were set too deep or too shallow. The standard is one line: the crown level with the soil surface, never burying the heart and never exposing the roots. After the settling water, one day shows you which are buried and which are exposed; a buried heart can still be saved by washing the soil away the same day.

One standard: the crown — where the new leaves emerge — sits level with the soil surface. Soil covering the heart is “sunken crown”; roots and crown neck left in the air is “exposed root”. Those two words decide the planting.

1. Depth: crown level with the soil surface

• One line covers it: never bury the heart, never expose the roots — the base of the crown flush with the soil surface.
• A buried heart is hard to save: the growing point is sealed in soil, air cannot reach it after watering, and the centre rots. An exposed root neck dries and shrinks and never establishes.
• If the heart gets buried, wash it out at once: trickle water around the crown to clear the soil and expose it — this rescues most over-deep plants, so do not wait for yellowing before digging them up.
• Level the bed and let the soil settle before planting: an uneven or loose bed is exactly what buries crowns once you water.
• On sandy soil, give the settling water in several small passes: one heavy dose runs straight through, and the collapsing surface buries the crown.

2. Orientation: crown back facing outwards

• The strawberry crown is slightly arched, and the flower truss emerges from the arched back. So point that arched side where you want the fruit to hang.
• Raised beds: on the outer rows, point the crown back outwards — fruit gets light and air, and picking is easier.
• Flat beds: on the outer rows, point it inwards, so trusses do not hang over the path edge and get stepped on.
• Keep every plant facing the same way: mulching under the fruit and picking both take half the effort.

3. The first ten days: water, check, replant

• Water the plants in immediately and thoroughly so soil closes around the roots.
• For the first week water daily or every other day, keeping the root zone moist rather than soaked.
• Before planting, cut off old and diseased leaves and keep 2-3 new leaves: fewer leaves mean less transpiration while the roots are still establishing.
• Check survival at about ten days and replant the gaps at once — too few plants per square metre cannot be made up by later care.

4. Plastic mulch: not whether, but which

• Autumn planting wants weed control, moisture retention and a stable soil temperature — black mulch is enough; the cooling role belongs to hot summer conditions.
• Press the mulch down tight against the bed and keep planting holes small, or weeds grow under it anyway.

Mulch	Main effect	When to choose it
Black	Lowers soil temperature, suppresses weeds, holds moisture, helps fruit size	The default for autumn planting in open ground
Black and white	White side up reflects heat, black side down kills weeds	Hot greenhouses in summer; better cooling and weeding than plain black
Silver grey	Reflects ultraviolet, repels aphids, adds reflected light for colour	Heavy aphid pressure, or when you want better colour
Red	Passes red light, boosts top growth, aids colour and sugar	Where fruit quality is the goal
Green	Warms and suppresses weeds, strong top growth	When you need extra warming; costly and ages fast

5. Removing leaves: 1-2 at a time, always keeping 5-7 open leaves

• Leaves are removed so light and air get in: good light supports flower-bud initiation, while over-thinning weakens the plant.
• Take 1-2 leaves at a time and keep 5-7 open leaves; target the old and diseased leaves in the middle of the bed.
• Decide by plant vigour and leaf number, not by a fixed number of days.
• Runners and side shoots: remove them while small; if one is already large, gouge out its core instead of tearing it off — a big wound is the easiest entry point for disease in hot, humid weather.

6. Two easy traps

• Strawberries are sensitive to chloride: too much chloride-containing fertiliser hurts fruit quality, so read the analysis before top-dressing.
• Sandy soil holds both water and nutrients poorly: water little and often, and feed the same way, in weak doses (there is a separate guide on watering sandy soil).

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