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-3.0°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 27 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 154 days 27 Apr – 28 Sep
Probability that frost is over

10% = 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)
9 – 23 Mar
18 Jun
5-7 wk
27 Apr
23 Jul
0 wk
20 Apr
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Mar
30 Jun
4-6 wk
27 Apr
28 Jul
0 wk
20 Apr
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
13 Feb – 13 Mar
8-12 wk
8 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Mar
13 Jun
5-7 wk
27 Apr
18 Jul
0 wk
15 Apr
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 Apr
1 May
3-4 wk
8 May
22 May
2 wk after
Florence Fennel
Foeniculum vulgare
28 Apr – 5 May
26 May
4-5 wk
2 Jun
23 Jun
5 wk after
2 Jun
13 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 May
3-4 wk
9 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
2 Feb – 2 Mar
2 Apr
8-12 wk
27 Apr
28 May
0 wk
7 May
18 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
20 Apr
17 Jun
1 wk before
20 Apr
7 Jun
1 wk before
Maize
Zea mays
Greenhouse
30 Mar – 6 Apr
21 Apr
3-4 wk
27 Apr
12 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 Apr
3 Jul
3-4 wk
3 May
24 Jul
1 wk after
7 May
14 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
8 Jul
0 wk
15 Apr
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Mar
13 Jun
5-7 wk
27 Apr
18 Jul
0 wk
15 Apr
8 Jul
2 wk before
Potato
Solanum tuberosum
21 Mar – 4 Apr
30 May
4-6 wk
2 May
27 Jun
1 wk after
2 May
17 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Mar
23 Jun
5-7 wk
27 Apr
28 Jul
0 wk
20 Apr
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
18 – 25 Apr
6 May
3-4 wk
16 May
27 May
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 Apr
14 Jun
3-4 wk
3 May
5 Jul
1 wk after
7 May
25 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Mar
25 Jun
4-6 wk
27 Apr
23 Jul
0 wk
Lettuce
Lactuca sativa
30 Mar – 6 Apr
12 Jul
3-4 wk
27 Apr
2 Aug
0 wk
20 Apr
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Mar
25 Jun
4-6 wk
27 Apr
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
18 Mar – 1 Apr
4 Jun
2-4 wk
15 Apr
18 Jun
2 wk before
15 Apr
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
20 Apr
17 Jun
1 wk before
20 Apr
7 Jun
1 wk before
Spinach
Spinacia oleracea
30 Mar – 6 Apr
27 Jul
3-4 wk
27 Apr
17 Aug
0 wk
9 Apr
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
24 May – 7 Jun
4-6 wk
5 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
2 – 16 Mar
31 Mar
6-8 wk
27 Apr
12 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 Apr
8 May
2-4 wk
8 May
22 May
2 wk after
18 May
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Mar
25 Jun
4-6 wk
27 Apr
23 Jul
0 wk
Garden pea
Pisum sativum
30 Mar – 6 Apr
27 Jun
3-4 wk
27 Apr
18 Jul
0 wk
20 Apr
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
4 – 18 Apr
14 Apr
4-6 wk
16 May
3 wk after
Lemon balm
Melissa officinalis
16 Feb – 2 Mar
23 May
8-10 wk
27 Apr
18 Jul
0 wk
18 May
8 Jul
3 wk after
Dill
Anethum graveolens
20 Apr
24 Jul
1 wk before
Wild chives
Allium schoenoprasum
2 – 16 Mar
6 Jun
6-8 wk
27 Apr
18 Jul
0 wk
20 Apr
8 Jul
1 wk before
Spearmint
Mentha spicata
2 Feb – 2 Mar
23 May
8-12 wk
27 Apr
18 Jul
0 wk
18 May
8 Jul
3 wk after
Coriander
Coriandrum sativum
27 Apr
13 Aug
0 wk
7 May
3 Aug
1 wk after
Garden sage
Salvia officinalis
22 Feb – 8 Mar
8 May
8-10 wk
3 May
3 Jul
1 wk after
Common thyme
Thymus vulgaris
16 Feb – 2 Mar
13 May
8-10 wk
27 Apr
8 Jul
0 wk
Oregano
Origanum vulgare
2 – 16 Mar
27 May
6-8 wk
27 Apr
8 Jul
0 wk
18 May
28 Jun
3 wk after
Parsley
Petroselinum crispum
2 – 16 Mar
27 May
6-8 wk
27 Apr
8 Jul
0 wk
20 Apr
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
25 Jan – 22 Feb
1 Apr
10-14 wk
3 May
10 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 Apr
21 Apr
3-4 wk
16 May
3 wk after
Cornflower
Centaurea cyanus
27 Apr
18 Jul
0 wk
20 Apr
8 Jul
1 wk before
Statice
Limonium sinuatum
7 – 21 Mar
25 Mar
8-10 wk
16 May
20 May
3 wk after
Sweet William
Dianthus barbatus
2 – 16 Mar
6-8 wk
27 Apr
0 wk
2 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
21 Mar – 4 Apr
8 Apr
6-8 wk
16 May
20 May
3 wk after
5 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
16 – 30 Mar
11 Apr
6-8 wk
11 May
23 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Mar – 20 Apr
25 Apr
4-8 wk
18 May
23 May
3 wk after
18 May
3 wk after
Foxglove
Digitalis purpurea
16 Feb – 2 Mar
8-10 wk
27 Apr
0 wk
7 May
1 wk after
Busy lizzie
Impatiens walleriana
10 Mar – 7 Apr
2 May
8-12 wk
2 Jun
27 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
21 Mar – 4 Apr
18 Apr
6-8 wk
16 May
30 May
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 Apr
4-6 wk
16 May
3 wk after
Chinese lantern
Physalis alkekengi
22 Feb – 8 Mar
19 Apr
8-10 wk
3 May
14 Jun
1 wk after
Love in a mist
Nigella damascena
27 Apr
3 Jul
0 wk
20 Apr
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
13 – 27 Mar
6 Apr
6-8 wk
8 May
18 May
2 wk after
12 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
8 Feb – 8 Mar
19 Apr
8-12 wk
3 May
14 Jun
1 wk after
Cardoon
Cynara cardunculus
21 Feb – 21 Mar
20 Mar
8-12 wk
16 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
13 Feb – 13 Mar
28 Mar
8-12 wk
8 May
23 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
13 – 27 Mar
11 Apr
6-8 wk
8 May
23 May
2 wk after
Corn poppy
Papaver rhoeas
27 Apr
18 Jul
0 wk
20 Apr
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
2 Feb – 2 Mar
13 May
8-12 wk
27 Apr
8 Jul
0 wk
2 May
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
24 Mar – 7 Apr
4 Apr
8-10 wk
2 Jun
5 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Mar
3 Jun
5-8 wk
27 Apr
8 Jul
0 wk
Stock
Matthiola incana
2 – 16 Mar
6 Jun
6-8 wk
27 Apr
18 Jul
0 wk
7 May
8 Jul
1 wk after
Wormwood
Artemisia absinthium
2 – 16 Mar
7 May
6-8 wk
27 Apr
18 Jun
0 wk
7 May
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
27 Mar – 10 Apr
20 Apr
4-6 wk
8 May
18 May
2 wk after
Garden pansy
Viola × wittrockiana
16 Feb – 2 Mar
23 May
8-10 wk
27 Apr
18 Jul
0 wk
2 May
8 Jul
1 wk after
Petunia
Petunia
21 Feb – 21 Mar
25 Mar
8-12 wk
16 May
20 May
3 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Mar
3 May
6-8 wk
3 May
14 Jun
1 wk after
2 Jun
4 Jun
5 wk after
Common zinnia
Zinnia elegans
4 – 18 Apr
14 Apr
4-6 wk
16 May
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 Apr
21 Apr
3-5 wk
16 May
3 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 Apr
25 Apr
4-6 wk
16 May
23 May
3 wk after
2 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
10 Mar – 7 Apr
6 Apr
8-12 wk
2 Jun
5 wk after
Bee balm
Monarda didyma
2 Feb – 2 Mar
23 Apr
8-12 wk
27 Apr
18 Jun
0 wk
18 May
8 Jun
3 wk after
Yarrow
Achillea millefolium
2 – 16 Mar
7 Apr
6-8 wk
27 Apr
19 May
0 wk
7 May
9 May
1 wk after
Safflower
Carthamus tinctorius
27 Apr
18 Jun
0 wk
20 Apr
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Mar
27 May
6-8 wk
27 Apr
8 Jul
0 wk
19 Mar
28 Jun
6 wk before
Bishop's flower
Ammi majus
16 – 30 Mar
10 Jun
4-6 wk
27 Apr
8 Jul
0 wk
7 May
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Feb
10 Mar
10-12 wk
8 May
19 May
2 wk after
Sunflower
Helianthus annuus
18 – 25 Apr
9 Jun
3-4 wk
16 May
30 Jun
3 wk after
18 May
20 Jun
3 wk after
China aster
Callistephus chinensis
21 Mar – 4 Apr
29 May
6-8 wk
16 May
10 Jul
3 wk after
2 Jun
30 Jun
5 wk after
Annual phlox
Phlox drummondii
13 – 27 Mar
18 Apr
6-8 wk
8 May
30 May
2 wk after
2 Jun
5 wk after
Hollyhock
Alcea rosea
2 – 16 Mar
6-8 wk
27 Apr
0 wk
7 May
1 wk after
Alpine delphinium
Delphinium elatum
2 Feb – 2 Mar
23 Apr
8-12 wk
27 Apr
18 Jun
0 wk
18 May
8 Jun
3 wk after
African marigold
Tagetes erecta
21 Mar – 4 Apr
18 Apr
6-8 wk
16 May
30 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Mar
19 May
6-8 wk
3 May
30 Jun
1 wk after
2 Jun
20 Jun
5 wk after
Wood sage
Salvia nemorosa
16 Feb – 2 Mar
13 Apr
8-10 wk
27 Apr
8 Jun
0 wk
18 May
29 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
7 Mar – 4 Apr
31 Mar
6-10 wk
16 May
3 wk after
California goldenpoppy
Eschscholzia californica
27 Apr
18 Jul
0 wk
20 Apr
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
7 – 21 Mar
28 Apr
8-10 wk
16 May
23 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Mar
7 May
6-8 wk
27 Apr
18 Jun
0 wk
7 May
8 Jun
1 wk after