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-4.0°
Moderate frost tomorrow morning at 06:00. Frost temperatures between 07:00 – tomorrow 09:00. Bring in or cover sensitive plants
-2.6°
Last 24h: Slight frost recorded yesterday morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 17 May Frost 1 of 4 years · 20 years of data
Frost-free season 142 days 17 May – 6 Oct
Probability that frost is over

75% = 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)
Season too short
4 – 18 Apr
5-7 wk
23 May
1 wk after
18 Apr
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
4-6 wk
3 Jun
2 wk after
13 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Mar
5-7 wk
23 Apr
4 wk before
9 May
2 wk before
Cucumber
Cucumis sativus
Season too short
24 – 31 May
3-4 wk
21 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
17 – 24 May
4-5 wk
21 Jun
5 wk after
27 May
1 wk after
Butter bean
Phaseolus lunatus
Season too short
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
Onion
Allium cepa (Cepa-gruppen)
22 Feb – 22 Mar
8-12 wk
17 May
Vid frost
30 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
1 wk after
Sweetcorn
Zea mays
Greenhouse
17 – 24 May
3-4 wk
14 Jun
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 May
3-4 wk
16 Jun
4 wk after
30 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Mar
5-7 wk
23 Apr
4 wk before
9 May
2 wk before
Potato
Solanum tuberosum
23 May – 6 Jun
4-6 wk
4 Jul
7 wk after
25 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Mar
5-7 wk
23 Apr
4 wk before
13 May
1 wk before
Pumpkin
Cucurbita pepo
Season too short
24 – 31 May
3-4 wk
21 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 May
3-4 wk
16 Jun
4 wk after
30 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
4-6 wk
3 Jun
2 wk after
Lettuce
Lactuca sativa
12 – 19 Apr
3-4 wk
10 May
1 wk before
13 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
29 Mar – 12 Apr
4-6 wk
10 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Apr
2-4 wk
2 May
2 wk before
9 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 May
1 wk before
Spinach
Spinacia oleracea
4 – 11 Apr
3-4 wk
2 May
2 wk before
4 May
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jun
4-6 wk
16 Jul
8 wk after
Tomato
Solanum lycopersicum
Season too short
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
11 – 25 May
2-4 wk
8 Jun
3 wk after
27 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
4-6 wk
3 Jun
2 wk after
Pea
Pisum sativum
4 – 11 Apr
3-4 wk
2 May
2 wk before
13 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
Greenhouse
3 – 17 May
4-6 wk
14 Jun
4 wk after
Lemon balm
Melissa officinalis
8 – 22 Mar
8-10 wk
17 May
Vid frost
11 Jun
3 wk after
Dill
Anethum graveolens
13 May
1 wk before
Chives
Allium schoenoprasum
26 Feb – 12 Mar
6-8 wk
23 Apr
4 wk before
13 May
1 wk before
Spearmint
Mentha spicata
7 Feb – 7 Mar
8-12 wk
2 May
2 wk before
11 Jun
3 wk after
Coriander
Coriandrum sativum
30 May
1 wk after
Sage
Salvia officinalis
Fleece
22 Mar – 5 Apr
8-10 wk
31 May
2 wk after
Thyme
Thymus vulgaris
25 Mar – 8 Apr
8-10 wk
3 Jun
2 wk after
Oregano
Origanum vulgare
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
11 Jun
3 wk after
Parsley
Petroselinum crispum
7 – 21 Mar
6-8 wk
2 May
2 wk before
13 May
1 wk before
Rosemary
Salvia rosmarinus
Greenhouse
14 Feb – 14 Mar
10-14 wk
23 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
5 – 12 Jun
3-4 wk
3 Jul
7 wk after
Cornflower
Centaurea cyanus
2 May
2 wk before
13 May
1 wk before
Statice
Limonium sinuatum
Season too short
30 Mar – 13 Apr
8-10 wk
8 Jun
3 wk after
Sweet William
Dianthus barbatus
7 – 21 Mar
6-8 wk
2 May
2 wk before
25 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
14 Jun
4 wk after
Dahlia
Dahlia × pinnata
Greenhouse
5 – 19 Apr
6-8 wk
31 May
2 wk after
Dahlia (tubers)
Dahlia × pinnata
4 May – 1 Jun
4-8 wk
29 Jun
6 wk after
11 Jun
3 wk after
Foxglove
Digitalis purpurea
21 Feb – 7 Mar
8-10 wk
2 May
2 wk before
30 May
1 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
29 Mar – 26 Apr
8-12 wk
21 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 May – 5 Jun
4-6 wk
3 Jul
7 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
14 – 28 Mar
8-10 wk
23 May
1 wk after
Love in a mist
Nigella damascena
13 May
1 wk before
Strawflower
Xerochrysum bracteatum
Season too short
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
14 Jun
4 wk after
Tall verbena
Verbena bonariensis
Greenhouse
28 Feb – 28 Mar
8-12 wk
23 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
5 wk after
Corn poppy
Papaver rhoeas
13 May
1 wk before
Snapdragon
Antirrhinum majus
15 Feb – 15 Mar
8-12 wk
10 May
1 wk before
25 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
12 – 26 Apr
8-10 wk
21 Jun
5 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Mar
5-8 wk
2 May
2 wk before
Stock
Matthiola incana
15 – 29 Mar
6-8 wk
10 May
1 wk before
30 May
1 wk after
Wormwood
Artemisia absinthium
7 – 21 Mar
6-8 wk
2 May
2 wk before
30 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
10 – 24 May
4-6 wk
21 Jun
5 wk after
Pansy
Viola × wittrockiana
12 – 26 Feb
8-10 wk
23 Apr
4 wk before
25 May
1 wk after
Petunia
Petunia
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
3 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
27 May
1 wk after
Zinnia
Zinnia elegans
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Season too short
17 – 31 May
3-5 wk
21 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
3 wk after
27 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
10 Apr – 8 May
8-12 wk
3 Jul
7 wk after
Bee balm
Monarda didyma
22 Feb – 22 Mar
8-12 wk
17 May
Vid frost
11 Jun
3 wk after
Yarrow
Achillea millefolium
7 – 21 Mar
6-8 wk
2 May
2 wk before
30 May
1 wk after
Safflower
Carthamus tinctorius
2 May
2 wk before
13 May
1 wk before
Iceland poppy
Papaver nudicaule
26 Feb – 12 Mar
6-8 wk
23 Apr
4 wk before
9 May
2 wk before
Bishop's flower
Ammi majus
16 – 30 Apr
4-6 wk
28 May
1 wk after
30 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
29 Mar – 12 Apr
10-12 wk
21 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
11 – 18 May
3-4 wk
8 Jun
3 wk after
16 May
China aster
Callistephus chinensis
Season too short
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
27 May
1 wk after
Annual phlox
Phlox drummondii
Fleece
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
7 Jun
3 wk after
Hollyhock
Alcea rosea
7 – 21 Mar
6-8 wk
2 May
2 wk before
30 May
1 wk after
Delphinium
Delphinium elatum
11 Mar – 8 Apr
8-12 wk
3 Jun
2 wk after
11 Jun
3 wk after
African marigold
Tagetes erecta
Season too short
13 – 27 Apr
6-8 wk
8 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
5 – 19 Apr
6-8 wk
31 May
2 wk after
7 Jun
3 wk after
Woodland sage
Salvia nemorosa
14 – 28 Mar
8-10 wk
23 May
1 wk after
11 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
12 Apr – 10 May
6-10 wk
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
13 May
1 wk before
Painted tongue
Salpiglossis sinuata
Season too short
30 Mar – 13 Apr
8-10 wk
8 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Mar
6-8 wk
2 May
2 wk before
30 May
1 wk after
Current date Soon Date passed