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0.6°
Near frost tonight at 04:00. Bring in or cover sensitive plants
-3.3°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 20 May Frost 1 of 10 years · 20 years of data
Frost-free season 150 days 20 May – 17 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)
1 – 15 Apr
18 Jun
5-7 wk
20 May
23 Jul
0 wk
13 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Apr
30 Jun
4-6 wk
20 May
28 Jul
0 wk
13 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
8 Mar – 5 Apr
15 Mar
8-12 wk
31 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
1 – 15 Apr
13 Jun
5-7 wk
20 May
18 Jul
0 wk
8 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
11 – 18 May
3-4 wk
8 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 May
10 Jun
4-5 wk
25 Jun
8 Jul
5 wk after
25 Jun
28 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Feb – 25 Mar
3 Apr
8-12 wk
20 May
29 May
0 wk
30 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
13 May
18 Jun
1 wk before
13 May
8 Jun
1 wk before
Maize
Zea mays
Fleece
3 – 10 May
3-4 wk
31 May
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
7 Jul
3-4 wk
26 May
28 Jul
1 wk after
30 May
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 May
8 Jul
0 wk
8 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
1 – 15 Apr
13 Jun
5-7 wk
20 May
18 Jul
0 wk
8 May
8 Jul
2 wk before
Potato
Solanum tuberosum
13 – 27 Apr
10 Jun
4-6 wk
25 May
8 Jul
1 wk after
25 May
28 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Apr
23 Jun
5-7 wk
20 May
28 Jul
0 wk
13 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
28 May – 4 Jun
3-4 wk
25 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
1 Jul
3-4 wk
26 May
22 Jul
1 wk after
30 May
12 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Apr
25 Jun
4-6 wk
20 May
23 Jul
0 wk
Lettuce
Lactuca sativa
22 – 29 Apr
12 Jul
3-4 wk
20 May
2 Aug
0 wk
13 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
8 – 22 Apr
25 Jun
4-6 wk
20 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
4 Jun
2-4 wk
8 May
18 Jun
2 wk before
8 May
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 May
18 Jun
1 wk before
13 May
8 Jun
1 wk before
Spinach
Spinacia oleracea
22 – 29 Apr
27 Jul
3-4 wk
20 May
17 Aug
0 wk
2 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
16 – 30 Jun
4-6 wk
28 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
5 – 19 Apr
8 Apr
6-8 wk
31 May
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
16 May
2-4 wk
8 Jun
3 wk after
25 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Apr
25 Jun
4-6 wk
20 May
23 Jul
0 wk
Garden pea
Pisum sativum
22 – 29 Apr
27 Jun
3-4 wk
20 May
18 Jul
0 wk
13 May
8 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
27 Apr – 11 May
11 May
4-6 wk
8 Jun
8 Jun
3 wk after
Lemon balm
Melissa officinalis
11 – 25 Mar
23 May
8-10 wk
20 May
18 Jul
0 wk
10 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
13 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
25 Mar – 8 Apr
6 Jun
6-8 wk
20 May
18 Jul
0 wk
13 May
8 Jul
1 wk before
Spearmint
Mentha spicata
25 Feb – 25 Mar
23 May
8-12 wk
20 May
18 Jul
0 wk
10 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
20 May
17 Aug
0 wk
30 May
7 Aug
1 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
8 May
8-10 wk
26 May
3 Jul
1 wk after
Common thyme
Thymus vulgaris
11 – 25 Mar
13 May
8-10 wk
20 May
8 Jul
0 wk
Oregano
Origanum vulgare
25 Mar – 8 Apr
27 May
6-8 wk
20 May
8 Jul
0 wk
10 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
25 Mar – 8 Apr
27 May
6-8 wk
20 May
8 Jul
0 wk
13 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
9 Apr
10-14 wk
26 May
18 Jun
1 wk after

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