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Fresh homegrown strawberries (or Fragaria × ananassa), can be a treat, pleasing
to the eye and pallet. They are easy to cultivate in planters or raised garden beds.
Growing them in a greenhouse, winter garden or conservatory can allow them
to yield fruit early.
Flowering: Strawberries blossom most of the year, white flowers of 1-2cm with yellow pollens.
Pollination: by bees.
Pests: Slugs, birds.
1. Exposure: Strawberry plants need at least 8 hours of sunlight daily, so make sure your
greenhouse is optimally positioned.
2. Planting: Use light soil, rich with organic matter (compost) and well drained. Strawberry
seedlings work better than seeds. Plant them with 20-30 cm intervals. The seedlings need
good aeration and temperatures as steady as possible. Keep your plants free from damp;
remove runners and weed regularly in order to allow free access to nutrients.
Growing Greenhouse Strawberries Using a Vertical Planter
3. Ventilation: It is important to provide free airflow in the greenhouse during daylight
hours to allow plants develop properly and prevent high humidity levels, which are likely
to evoke fungi and disease. Open vents will also allow bees to pollinate the plants.
Weather forecasts can help you decide whether to leave the vents open for aeration
or seal them to maintain warmth.
4. Irrigation: After planting, first allow the soil to dry and then water until saturation –
when up to a third of the water drains out of the planter. When planting directly to the
ground, you can determine the required amount by gradually decreasing the water dose
until the plant shows a sign of dryness that marks the lower watering limit.
5. Protection: Since strawberry plants are shallow rooted, the soil must be kept moist.
They are susceptible to diseases and pests (they are loved by all, not just us humans).
Fabric planting containers or grow pots form an effective shield from cold and pests
and are highly recommended. The fruit is sensitive to cold and moisture so it is recommended
to keep it away from the ground using a separator, such as a sheet of plastic.
6. Expansion: Mature strawberry plants send out extensions from which new plants
will develop, in other planters or unoccupied ground. These extensions should be manually
directed to where they are likely to thrive. If you intend to trim extensions, wait until they
dry completely out of the ground.
7. Enjoy the fruit: Remember, redder means sweeter, so we recommend picking the strawberries
when they turn entirely red. The sweet and acidulous fruit is delicious as is, but also in beverages,
cakes and muesli.