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-1.4°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 27 May Frost 1 of 10 years · 20 years of data
Frost-free season 152 days 27 May – 26 Oct
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
8 – 22 Apr
20 Jun
5-7 wk
27 May
25 Jul
0 wk
21 May
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
2 Jul
4-6 wk
27 May
30 Jul
0 wk
21 May
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
15 Jun
5-7 wk
27 May
20 Jul
0 wk
14 May
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
17 – 24 May
20 May
3-4 wk
14 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
2 – 9 Jun
12 Jun
4-5 wk
7 Jul
10 Jul
6 wk after
7 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 Jun
3-4 wk
17 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Mar – 1 Apr
5 Apr
8-12 wk
27 May
31 May
0 wk
9 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 May
20 Jun
1 wk before
21 May
10 Jun
1 wk before
Maize
Zea mays
Greenhouse
29 Apr – 6 May
10 May
3-4 wk
27 May
31 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
9 Jul
3-4 wk
27 May
30 Jul
0 wk
9 Jun
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
10 Jul
0 wk
14 May
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
15 Jun
5-7 wk
27 May
20 Jul
0 wk
14 May
10 Jul
2 wk before
Potato
Solanum tuberosum
20 Apr – 4 May
12 Jun
4-6 wk
1 Jun
10 Jul
1 wk after
1 Jun
30 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
25 Jun
5-7 wk
27 May
30 Jul
0 wk
21 May
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
26 May – 2 Jun
3-4 wk
23 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
30 Jun
3-4 wk
27 May
21 Jul
0 wk
9 Jun
11 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
27 Jun
4-6 wk
27 May
25 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
14 Jul
3-4 wk
27 May
4 Aug
0 wk
21 May
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
27 Jun
4-6 wk
27 May
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
6 Jun
2-4 wk
14 May
20 Jun
2 wk before
14 May
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 May
20 Jun
1 wk before
21 May
10 Jun
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
29 Jul
3-4 wk
27 May
19 Aug
0 wk
7 May
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
1 – 15 Apr
19 Apr
6-8 wk
27 May
31 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
17 – 31 May
27 May
2-4 wk
14 Jun
3 wk after
22 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
27 Jun
4-6 wk
27 May
25 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
29 Jun
3-4 wk
27 May
20 Jul
0 wk
21 May
10 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
12 – 26 May
4-6 wk
23 Jun
4 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
25 May
8-10 wk
27 May
20 Jul
0 wk
22 Jun
10 Jul
4 wk after
Dill
Anethum graveolens
21 May
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
1 – 15 Apr
8 Jun
6-8 wk
27 May
20 Jul
0 wk
21 May
10 Jul
1 wk before
Spearmint
Mentha spicata
4 Mar – 1 Apr
25 May
8-12 wk
27 May
20 Jul
0 wk
22 Jun
10 Jul
4 wk after
Coriander
Coriandrum sativum
27 May
19 Aug
0 wk
9 Jun
9 Aug
2 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
10 May
8-10 wk
27 May
5 Jul
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
15 May
8-10 wk
27 May
10 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
0 wk
22 Jun
30 Jun
4 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
0 wk
21 May
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
18 Feb – 18 Mar
11 Apr
10-14 wk
27 May
20 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Fleece
26 May – 2 Jun
3-4 wk
23 Jun
4 wk after
Cornflower
Centaurea cyanus
27 May
20 Jul
0 wk
21 May
10 Jul
1 wk before
Statice
Limonium sinuatum
14 – 28 Apr
8-10 wk
23 Jun
4 wk after
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
1 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
9 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
23 Apr – 7 May
1 May
6-8 wk
18 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
15 May
4-8 wk
22 Jun
4 wk after
22 Jun
4 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
9 Jun
2 wk after
Busy lizzie
Impatiens walleriana
14 Apr – 12 May
21 May
8-12 wk
7 Jul
16 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
28 Apr – 12 May
4 May
6-8 wk
23 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
4 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
25 Apr
8-10 wk
27 May
20 Jun
0 wk
Love in a mist
Nigella damascena
27 May
5 Jul
0 wk
21 May
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
9 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
25 Apr
8-12 wk
27 May
20 Jun
0 wk
Cardoon
Cynara cardunculus
31 Mar – 28 Apr
8-12 wk
23 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
31 Mar – 28 Apr
8-12 wk
23 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
Corn poppy
Papaver rhoeas
27 May
20 Jul
0 wk
21 May
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
15 May
8-12 wk
27 May
10 Jul
0 wk
1 Jun
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
28 Apr – 12 May
8-10 wk
7 Jul
6 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
5 Jun
5-8 wk
27 May
10 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
8 Jun
6-8 wk
27 May
20 Jul
0 wk
9 Jun
10 Jul
2 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
9 May
6-8 wk
27 May
20 Jun
0 wk
9 Jun
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
3 – 17 May
10 May
4-6 wk
14 Jun
3 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
25 May
8-10 wk
27 May
20 Jul
0 wk
1 Jun
10 Jul
1 wk after
Petunia
Petunia
31 Mar – 28 Apr
10 Apr
8-12 wk
23 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
9 May
6-8 wk
27 May
20 Jun
0 wk
7 Jul
6 wk after
Common zinnia
Zinnia elegans
12 – 26 May
4-6 wk
23 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
19 May – 2 Jun
3-5 wk
23 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 May
15 May
4-6 wk
23 Jun
4 wk after
7 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
14 Apr – 12 May
25 Apr
8-12 wk
7 Jul
6 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
25 Apr
8-12 wk
27 May
20 Jun
0 wk
22 Jun
4 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
9 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Safflower
Carthamus tinctorius
27 May
20 Jun
0 wk
21 May
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
0 wk
11 Apr
30 Jun
7 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
12 Jun
4-6 wk
27 May
10 Jul
0 wk
9 Jun
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
31 Mar – 14 Apr
10-12 wk
23 Jun
4 wk after
Sunflower
Helianthus annuus
26 May – 2 Jun
19 Jun
3-4 wk
23 Jun
10 Jul
4 wk after
22 Jun
30 Jun
4 wk after
China aster
Callistephus chinensis
28 Apr – 12 May
8 Jun
6-8 wk
23 Jun
20 Jul
4 wk after
7 Jul
10 Jul
6 wk after
Annual phlox
Phlox drummondii
19 Apr – 3 May
4 May
6-8 wk
14 Jun
15 Jun
3 wk after
7 Jul
6 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
25 Apr
8-12 wk
27 May
20 Jun
0 wk
22 Jun
4 wk after
African marigold
Tagetes erecta
28 Apr – 12 May
4 May
6-8 wk
23 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
0 wk
7 Jul
6 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
15 Apr
8-10 wk
27 May
10 Jun
0 wk
22 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
14 Apr – 12 May
19 Apr
6-10 wk
23 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
27 May
20 Jul
0 wk
21 May
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
14 – 28 Apr
15 May
8-10 wk
23 Jun
10 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
9 May
6-8 wk
27 May
20 Jun
0 wk
9 Jun
10 Jun
2 wk after