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-4.0°
Moderate frost tomorrow morning at 06:00. Frost temperatures between 21:00 – tomorrow 23:00. Bring in or cover sensitive plants
-3.1°
Last 24h: Slight frost recorded tonight at 02:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 5 May Frost 3 of 4 years · 20 years of data
Frost-free season 147 days 5 May – 29 Sep
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
26 Mar – 9 Apr
5-7 wk
14 May
1 wk after
1 Apr
5 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
1 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
6 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
27 Apr
2 wk before
Cucumber
Cucumis sativus
Season too short
18 – 25 May
3-4 wk
15 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
Season too short
11 – 18 May
4-5 wk
15 Jun
6 wk after
18 May
2 wk after
Butter bean
Phaseolus lunatus
Greenhouse
18 – 25 May
3-4 wk
15 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Feb – 10 Mar
8-12 wk
5 May
Vid frost
18 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 May
2 wk after
Sweetcorn
Zea mays
Fleece
23 – 30 May
3-4 wk
20 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
3-4 wk
4 Jun
5 wk after
18 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
27 Apr
2 wk before
Potato
Solanum tuberosum
11 – 25 May
4-6 wk
22 Jun
8 wk after
13 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
1 May
1 wk before
Pumpkin
Cucurbita pepo
Season too short
18 – 25 May
3-4 wk
15 Jun
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
3-4 wk
4 Jun
5 wk after
18 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
Lettuce
Lactuca sativa
31 Mar – 7 Apr
3-4 wk
28 Apr
1 wk before
1 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 – 31 Mar
4-6 wk
28 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Mar – 6 Apr
2-4 wk
20 Apr
3 wk before
27 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
1 May
1 wk before
Spinach
Spinacia oleracea
23 – 30 Mar
3-4 wk
20 Apr
3 wk before
22 Apr
3 wk before
Sweet potato
Ipomoea batatas
23 May – 6 Jun
4-6 wk
4 Jul
11 wk after
Tomato
Solanum lycopersicum
Greenhouse
5 – 19 Apr
6-8 wk
31 May
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
3 – 17 May
2-4 wk
31 May
4 wk after
18 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
Pea
Pisum sativum
23 – 30 Mar
3-4 wk
20 Apr
3 wk before
1 May
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
9 – 23 May
4-6 wk
20 Jun
7 wk after
Lemon balm
Melissa officinalis
24 Feb – 10 Mar
8-10 wk
5 May
Vid frost
30 May
4 wk after
Dill
Anethum graveolens
1 May
1 wk before
Chives
Allium schoenoprasum
14 – 28 Feb
6-8 wk
11 Apr
4 wk before
1 May
1 wk before
Spearmint
Mentha spicata
26 Jan – 23 Feb
8-12 wk
20 Apr
3 wk before
30 May
4 wk after
Coriander
Coriandrum sativum
18 May
2 wk after
Sage
Salvia officinalis
Fleece
16 – 30 Mar
8-10 wk
25 May
3 wk after
Thyme
Thymus vulgaris
13 – 27 Mar
8-10 wk
22 May
3 wk after
Oregano
Origanum vulgare
16 – 30 Mar
6-8 wk
11 May
1 wk after
30 May
4 wk after
Parsley
Petroselinum crispum
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
1 May
1 wk before
Rosemary
Salvia rosmarinus
Greenhouse
5 Feb – 5 Mar
10-14 wk
14 May
1 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
2 – 9 Jun
3-4 wk
30 Jun
8 wk after
Cornflower
Centaurea cyanus
20 Apr
3 wk before
1 May
1 wk before
Statice
Limonium sinuatum
Greenhouse
22 Mar – 5 Apr
8-10 wk
31 May
4 wk after
Sweet William
Dianthus barbatus
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
13 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
5 – 19 Apr
6-8 wk
31 May
4 wk after
7 Jun
5 wk after
Dahlia
Dahlia × pinnata
Greenhouse
30 Mar – 13 Apr
6-8 wk
25 May
3 wk after
Dahlia (tubers)
Dahlia × pinnata
22 Apr – 20 May
4-8 wk
17 Jun
7 wk after
30 May
4 wk after
Foxglove
Digitalis purpurea
9 – 23 Feb
8-10 wk
20 Apr
3 wk before
18 May
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
23 Mar – 20 Apr
8-12 wk
15 Jun
6 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
5 – 19 Apr
6-8 wk
31 May
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
19 May – 2 Jun
4-6 wk
30 Jun
8 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
5 – 19 Mar
8-10 wk
14 May
1 wk after
Love in a mist
Nigella damascena
1 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
5 – 19 Apr
6-8 wk
31 May
4 wk after
7 Jun
5 wk after
Tall verbena
Verbena bonariensis
Greenhouse
19 Feb – 19 Mar
8-12 wk
14 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
8 Mar – 5 Apr
8-12 wk
31 May
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
6 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
6-8 wk
15 Jun
6 wk after
Corn poppy
Papaver rhoeas
1 May
1 wk before
Snapdragon
Antirrhinum majus
3 Feb – 3 Mar
8-12 wk
28 Apr
1 wk before
13 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
6 – 20 Apr
8-10 wk
15 Jun
6 wk after
Sweet pea
Lathyrus odoratus
23 Feb – 16 Mar
5-8 wk
20 Apr
3 wk before
Stock
Matthiola incana
3 – 17 Mar
6-8 wk
28 Apr
1 wk before
18 May
2 wk after
Wormwood
Artemisia absinthium
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
18 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
4 – 18 May
4-6 wk
15 Jun
6 wk after
Pansy
Viola × wittrockiana
31 Jan – 14 Feb
8-10 wk
11 Apr
4 wk before
13 May
1 wk after
Petunia
Petunia
Greenhouse
8 Mar – 5 Apr
8-12 wk
31 May
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
19 Mar – 2 Apr
6-8 wk
14 May
1 wk after
18 May
2 wk after
Zinnia
Zinnia elegans
Greenhouse
19 Apr – 3 May
4-6 wk
31 May
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
11 – 25 May
3-5 wk
15 Jun
6 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
19 Apr – 3 May
4-6 wk
31 May
4 wk after
18 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
7 Apr – 5 May
8-12 wk
30 Jun
8 wk after
Bee balm
Monarda didyma
10 Feb – 10 Mar
8-12 wk
5 May
Vid frost
30 May
4 wk after
Yarrow
Achillea millefolium
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
18 May
2 wk after
Safflower
Carthamus tinctorius
20 Apr
3 wk before
1 May
1 wk before
Iceland poppy
Papaver nudicaule
14 – 28 Feb
6-8 wk
11 Apr
4 wk before
27 Apr
2 wk before
Bishop's flower
Ammi majus
4 – 18 Apr
4-6 wk
16 May
2 wk after
18 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
10-12 wk
15 Jun
6 wk after
Sunflower
Helianthus annuus
Greenhouse
3 – 10 May
3-4 wk
31 May
4 wk after
4 May
China aster
Callistephus chinensis
Season too short
5 – 19 Apr
6-8 wk
31 May
4 wk after
18 May
2 wk after
Annual phlox
Phlox drummondii
Fleece
5 – 19 Apr
6-8 wk
31 May
4 wk after
31 May
4 wk after
Hollyhock
Alcea rosea
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
18 May
2 wk after
Delphinium
Delphinium elatum
27 Feb – 27 Mar
8-12 wk
22 May
3 wk after
30 May
4 wk after
African marigold
Tagetes erecta
Greenhouse
5 – 19 Apr
6-8 wk
31 May
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
30 Mar – 13 Apr
6-8 wk
25 May
3 wk after
31 May
4 wk after
Woodland sage
Salvia nemorosa
2 – 16 Mar
8-10 wk
11 May
1 wk after
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
6 Apr – 4 May
6-10 wk
15 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
1 May
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
22 Mar – 5 Apr
8-10 wk
31 May
4 wk after
Water forget-me-not
Myosotis scorpioides
23 Feb – 9 Mar
6-8 wk
20 Apr
3 wk before
18 May
2 wk after
Current date Soon Date passed