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0.9°
Near frost tonight at 05:00. Bring in or cover sensitive plants
-2.1°
Last 24h: Slight frost recorded last night 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 143 days 27 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)
8 – 22 Apr
16 Jun
5-7 wk
27 May
21 Jul
0 wk
20 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
28 Jun
4-6 wk
27 May
26 Jul
0 wk
20 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
15 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
22 May
3-4 wk
7 Jun
12 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
28 May – 4 Jun
8 Jun
4-5 wk
2 Jul
6 Jul
5 wk after
2 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Mar – 1 Apr
1 Apr
8-12 wk
27 May
27 May
0 wk
6 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
20 May
16 Jun
1 wk before
20 May
6 Jun
1 wk before
Maize
Zea mays
Greenhouse
29 Apr – 6 May
12 May
3-4 wk
27 May
2 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 May
5 Jul
3-4 wk
2 Jun
26 Jul
1 wk after
6 Jun
16 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
6 Jul
0 wk
15 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
15 May
6 Jul
2 wk before
Potato
Solanum tuberosum
20 Apr – 4 May
8 Jun
4-6 wk
1 Jun
6 Jul
1 wk after
1 Jun
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
21 Jun
5-7 wk
27 May
26 Jul
0 wk
20 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
18 – 25 May
27 May
3-4 wk
15 Jun
17 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 May
28 Jun
3-4 wk
2 Jun
19 Jul
1 wk after
6 Jun
9 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
10 Jul
3-4 wk
27 May
31 Jul
0 wk
20 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Apr – 1 May
2 Jun
2-4 wk
15 May
16 Jun
2 wk before
15 May
6 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
20 May
16 Jun
1 wk before
20 May
6 Jun
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
25 Jul
3-4 wk
27 May
15 Aug
0 wk
9 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
1 – 15 Apr
21 Apr
6-8 wk
27 May
2 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
29 May
2-4 wk
7 Jun
12 Jun
2 wk after
17 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
25 Jun
3-4 wk
27 May
16 Jul
0 wk
20 May
6 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
4 – 18 May
5 May
4-6 wk
15 Jun
3 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
21 May
8-10 wk
27 May
16 Jul
0 wk
17 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
20 May
26 Jul
1 wk before
Wild chives
Allium schoenoprasum
1 – 15 Apr
4 Jun
6-8 wk
27 May
16 Jul
0 wk
20 May
6 Jul
1 wk before
Spearmint
Mentha spicata
4 Mar – 1 Apr
21 May
8-12 wk
27 May
16 Jul
0 wk
17 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
27 May
15 Aug
0 wk
6 Jun
5 Aug
1 wk after
Garden sage
Salvia officinalis
24 Mar – 7 Apr
6 May
8-10 wk
2 Jun
1 Jul
1 wk after
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
11 May
8-10 wk
27 May
6 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
17 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
20 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
24 Feb – 24 Mar
7 Apr
10-14 wk
2 Jun
16 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
18 – 25 May
3-4 wk
15 Jun
3 wk after
Cornflower
Centaurea cyanus
27 May
16 Jul
0 wk
20 May
6 Jul
1 wk before
Statice
Limonium sinuatum
6 – 20 Apr
8-10 wk
15 Jun
3 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
20 Apr – 4 May
6-8 wk
15 Jun
3 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
22 Apr – 20 May
13 May
4-8 wk
17 Jun
3 wk after
17 Jun
3 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
6 Jun
1 wk after
Busy lizzie
Impatiens walleriana
9 Apr – 7 May
23 May
8-12 wk
2 Jul
18 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
20 Apr – 4 May
27 Apr
6-8 wk
15 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
3 wk after
Chinese lantern
Physalis alkekengi
24 Mar – 7 Apr
21 Apr
8-10 wk
2 Jun
16 Jun
1 wk after
Love in a mist
Nigella damascena
27 May
1 Jul
0 wk
20 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
12 – 26 Apr
24 Apr
6-8 wk
7 Jun
2 wk after
12 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
10 Mar – 7 Apr
21 Apr
8-12 wk
2 Jun
16 Jun
1 wk after
Cardoon
Cynara cardunculus
23 Mar – 20 Apr
8-12 wk
15 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
23 Mar – 20 Apr
28 Mar
8-12 wk
15 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
20 Apr – 4 May
6-8 wk
15 Jun
3 wk after
Corn poppy
Papaver rhoeas
27 May
16 Jul
0 wk
20 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
11 May
8-12 wk
27 May
6 Jul
0 wk
1 Jun
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
23 Apr – 7 May
8-10 wk
2 Jul
5 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
1 Jun
5-8 wk
27 May
6 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
4 Jun
6-8 wk
27 May
16 Jul
0 wk
6 Jun
6 Jul
1 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
6 Jun
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
26 Apr – 10 May
8 May
4-6 wk
7 Jun
2 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
21 May
8-10 wk
27 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Petunia
Petunia
23 Mar – 20 Apr
3 Apr
8-12 wk
15 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
7 – 21 Apr
5 May
6-8 wk
2 Jun
16 Jun
1 wk after
2 Jul
5 wk after
Common zinnia
Zinnia elegans
4 – 18 May
5 May
4-6 wk
15 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 May
12 May
3-5 wk
15 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 May
13 May
4-6 wk
15 Jun
3 wk after
2 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
9 Apr – 7 May
27 Apr
8-12 wk
2 Jul
5 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
21 Apr
8-12 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
5 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Safflower
Carthamus tinctorius
27 May
16 Jun
0 wk
20 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
18 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
8 Jun
4-6 wk
27 May
6 Jul
0 wk
6 Jun
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
23 Mar – 6 Apr
10-12 wk
15 Jun
3 wk after
Sunflower
Helianthus annuus
18 – 25 May
15 Jun
3-4 wk
15 Jun
6 Jul
3 wk after
17 Jun
26 Jun
3 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
4 Jun
6-8 wk
15 Jun
16 Jul
3 wk after
2 Jul
6 Jul
5 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
27 Apr
6-8 wk
7 Jun
8 Jun
2 wk after
2 Jul
5 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
21 Apr
8-12 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after
African marigold
Tagetes erecta
20 Apr – 4 May
27 Apr
6-8 wk
15 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Apr
25 May
6-8 wk
2 Jun
6 Jul
1 wk after
2 Jul
5 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
11 Apr
8-10 wk
27 May
6 Jun
0 wk
17 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
6 Apr – 4 May
21 Apr
6-10 wk
15 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
27 May
16 Jul
0 wk
20 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
6 – 20 Apr
11 May
8-10 wk
15 Jun
6 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
6 Jun
6 Jun
1 wk after