What to plant in Sentjur in September
September in Šentjur brings mild daytime temperatures averaging 16.6°C with cool nights around 12.2°C and reliable rainfall of 102.4 mm. This transition into early autumn provides ideal soil moisture and temperate conditions for establishing cold-hardy leafy greens, root crops, and overwintering alliums before significant late-autumn cooling begins in October and November. Gardeners should focus exclusively on cool-season crops, as upcoming months will drop toward winter freezing levels.
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Посев
Рекомендуемый посев
Spinach
Direct sow outdoors in early to mid-September. Thrives in current 16.6°C mean temperatures and will continue vegetative growth as October cools.
Corn Salad (Mâche)
Direct sow outdoors throughout September. Established plants will yield fresh greens throughout late autumn and winter under snow or fleece.
Radish
Direct sow outdoors early in the month to ensure roots swell before October temperatures drop below 12°C.
Winter Lettuce
Direct sow outdoors in prepared beds; thin seedlings to 25 cm apart before November cold sets in.
Arugula (Rocket)
Direct sow in shallow drills. Multiple pickings possible before sub-zero temperatures arrive in late autumn.
Turnip
Direct sow outdoors immediately in early September so roots develop before November's sharp temperature drop to 5.4°C.
Winter Garlic
Plant individual cloves pointed end up, 5 cm deep. Prioritize root establishment before freezing temperatures in December.
Winter Onion Sets
Push sets into firm soil leaving tips visible. Well-drained soil is essential to prevent rot during the 102.4 mm September and 83.1 mm October rainfall.
Рассада
Рассада
Kale
Transplant sturdy nursery-grown seedlings early in September to allow strong root anchorage before October cooling.
Kohlrabi
Transplant mature seedlings into fertile soil by the first week of September for harvest before November frosts.
Winter Cabbage
Transplant only well-developed seedlings into the ground promptly to ensure heads firm up before October's 8.1°C night average sets in.
Tasks
Monthly tasks
Clear declining summer crops to minimize fungal spore carryover under the 102.4 mm rainfall regime. Aerate compacted beds and incorporate organic compost prior to autumn sowings. Prepare fleece or low tunnels by late September to protect sensitive autumn greens against early October night chill down to 8.1°C.