What to plant in May in Finland
24 vegetables, fruits and herbs to sow or plant in May in Finland, for the climate around Helsinki area, Uusimaa, Finland.
Climate: A cold northern climate with a short growing season: frosts from roughly October to May, winter minima near -18 °C, mild summers around 12-22 °C, and fairly even rainfall with a wetter autumn.
Vegetables
Pea Pisum sativum
Hardy seedlings tolerate light spring frosts and cool weather, and the long days give sweet, tender pods.
Harvest: 60-70 daysEasyCare guide →
Spinach Spinacia oleracea
It thrives in cool spring and autumn temperatures and bolts less in long northern days than in heat.
Harvest: 40-50 daysEasyIn potsCare guide →
Lettuce Lactuca sativa
Quick-growing leaves do well in the mild summer, and cool-season varieties resist early bolting.
Harvest: 45-60 daysEasyIn potsCare guide →
Carrot Daucus carota
Sandy or loamy soil warms up by late May, and cool autumns sweeten the roots.
Harvest: 70-80 daysEasyIn potsCare guide →
Beetroot Beta vulgaris
It tolerates the cool summer well and stores in the cellar through the long winter.
Harvest: 55-65 daysEasyIn pots
Potato Solanum tuberosum
Planted after the last frost, it yields well in the long summer days, and early varieties suit the short season.
Harvest: 80-110 daysEasyIn pots
Radish Raphanus sativus
Its fast crop fits the short spring and late summer windows between frosts.
Harvest: 25-35 daysEasyIn pots
Onion Allium cepa
Hardy sets planted in April or May mature before the autumn rains and store well.
Harvest: 100-120 days from setsEasyIn potsCare guide →
Turnip Brassica rapa
Cool autumn weather produces crisp, sweet roots, and the crop matures quickly.
Harvest: 50-60 daysEasy
Rhubarb Rheum rhabarbarum
A perennial that survives the coldest winters and returns every spring, needing only sun and rich soil.
Harvest: 1-2 yearsEasy
Cabbage Brassica oleracea
Hardy cabbage handles the cool summers and is best transplanted in late May or June for autumn heads.
Harvest: 90-110 daysModerateCare guide →
Broad bean Vicia faba
Hardy varieties sown in spring tolerate cold soil and yield well before the summer heat.
Harvest: 80-100 daysEasy
Fruits
Redcurrant Ribes rubrum
Very hardy bushes survive -30 °C winters and need the cool summers to set fruit.
Harvest: 2-3 yearsEasy
Blackcurrant Ribes nigrum
It is among the hardiest fruit crops and thrives on the long cool summers and wet autumns.
Harvest: 2-3 yearsEasy
Raspberry Rubus idaeus
Canes survive the winter minima, and the summer warmth ripens the berries in July.
Harvest: 1-2 yearsEasyCare guide →
Strawberry Fragaria × ananassa
Hardy plants survive under snow, and the long June days produce sweet berries.
Harvest: 1 yearEasyIn potsCare guide →
Apple Malus domestica
Cold-hardy apple trees on dwarfing rootstock survive winter lows and need warm summer days to ripen fruit.
Harvest: 3-5 yearsModerateCare guide →
Haskap Lonicera caerulea
This shrub is extremely hardy, flowers after frost, and fruits well in the cool northern summer.
Harvest: 2-3 yearsEasy
Sea buckthorn Hippophae rhamnoides
A native-style shrub that tolerates extreme cold and poor soil, and needs a male and a female plant to fruit.
Harvest: 3-4 yearsModerate
Herbs
Chives Allium schoenoprasum
A hardy perennial that regrows each spring and tolerates the frost.
Harvest: 60-70 days from seedEasyIn potsCare guide →
Parsley Petroselinum crispum
Cool summers keep it leafy, and it tolerates light frost into autumn.
Harvest: 70-90 daysEasyIn potsCare guide →
Dill Anethum graveolens
It grows quickly in the long northern summer days and self-seeds readily.
Harvest: 40-60 daysEasyIn pots
Mint Mentha spicata
A hardy perennial that thrives in moist soil and returns reliably each year.
Harvest: 60-90 days from cuttingsEasyIn potsCare guide →
Lovage Levisticum officinale
A very hardy perennial that comes back year after year in the cold climate.
Harvest: 2 years from seedEasy