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-3.4°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 30 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 147 days 30 Apr – 24 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)
12 – 26 Mar
20 Jun
5-7 wk
30 Apr
25 Jul
0 wk
24 Apr
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
19 Mar – 2 Apr
2 Jul
4-6 wk
30 Apr
30 Jul
0 wk
24 Apr
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
23 Feb – 23 Mar
8-12 wk
18 May
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
12 – 26 Mar
15 Jun
5-7 wk
30 Apr
20 Jul
0 wk
17 Apr
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
20 – 27 Apr
3-4 wk
18 May
3 wk after
Florence Fennel
Foeniculum vulgare
6 – 13 May
22 May
4-5 wk
10 Jun
19 Jun
6 wk after
10 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
23 – 30 May
3-4 wk
20 Jun
7 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Feb – 5 Mar
1 Apr
8-12 wk
30 Apr
27 May
0 wk
13 May
17 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
24 Apr
16 Jun
1 wk before
24 Apr
6 Jun
1 wk before
Maize
Zea mays
Season too short
2 – 9 Apr
3-4 wk
30 Apr
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 Apr
3 Jul
3-4 wk
30 Apr
24 Jul
0 wk
13 May
14 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 Apr
10 Jul
0 wk
17 Apr
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
12 – 26 Mar
15 Jun
5-7 wk
30 Apr
20 Jul
0 wk
17 Apr
10 Jul
2 wk before
Potato
Solanum tuberosum
24 Mar – 7 Apr
29 May
4-6 wk
5 May
26 Jun
1 wk after
5 May
16 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
12 – 26 Mar
25 Jun
5-7 wk
30 Apr
30 Jul
0 wk
24 Apr
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
20 – 27 Apr
25 May
3-4 wk
18 May
15 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 Apr
8 Jun
3-4 wk
30 Apr
29 Jun
0 wk
13 May
19 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Mar – 2 Apr
27 Jun
4-6 wk
30 Apr
25 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 Apr
14 Jul
3-4 wk
30 Apr
4 Aug
0 wk
24 Apr
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
19 Mar – 2 Apr
27 Jun
4-6 wk
30 Apr
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Mar – 3 Apr
3 Jun
2-4 wk
17 Apr
17 Jun
2 wk before
17 Apr
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
24 Apr
16 Jun
1 wk before
24 Apr
6 Jun
1 wk before
Spinach
Spinacia oleracea
2 – 9 Apr
29 Jul
3-4 wk
30 Apr
19 Aug
0 wk
10 Apr
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jun
4-6 wk
13 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
5 – 19 Mar
6-8 wk
30 Apr
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
2 – 16 Apr
27 May
2-4 wk
30 Apr
10 Jun
0 wk
13 May
31 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Mar – 2 Apr
27 Jun
4-6 wk
30 Apr
25 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 Apr
29 Jun
3-4 wk
30 Apr
20 Jul
0 wk
24 Apr
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
Greenhouse
6 – 20 Apr
3 May
4-6 wk
18 May
31 May
3 wk after
Lemon balm
Melissa officinalis
19 Feb – 5 Mar
25 May
8-10 wk
30 Apr
20 Jul
0 wk
26 May
10 Jul
4 wk after
Dill
Anethum graveolens
24 Apr
24 Jul
1 wk before
Wild chives
Allium schoenoprasum
5 – 19 Mar
8 Jun
6-8 wk
30 Apr
20 Jul
0 wk
24 Apr
10 Jul
1 wk before
Spearmint
Mentha spicata
5 Feb – 5 Mar
25 May
8-12 wk
30 Apr
20 Jul
0 wk
26 May
10 Jul
4 wk after
Coriander
Coriandrum sativum
30 Apr
13 Aug
0 wk
13 May
3 Aug
2 wk after
Garden sage
Salvia officinalis
19 Feb – 5 Mar
10 May
8-10 wk
30 Apr
5 Jul
0 wk
Common thyme
Thymus vulgaris
19 Feb – 5 Mar
15 May
8-10 wk
30 Apr
10 Jul
0 wk
Oregano
Origanum vulgare
5 – 19 Mar
29 May
6-8 wk
30 Apr
10 Jul
0 wk
26 May
30 Jun
4 wk after
Parsley
Petroselinum crispum
5 – 19 Mar
29 May
6-8 wk
30 Apr
10 Jul
0 wk
24 Apr
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
22 Jan – 19 Feb
4 Apr
10-14 wk
30 Apr
13 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
Greenhouse
20 – 27 Apr
10 May
3-4 wk
18 May
31 May
3 wk after
Cornflower
Centaurea cyanus
30 Apr
20 Jul
0 wk
24 Apr
10 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
9 – 23 Mar
26 Mar
8-10 wk
18 May
21 May
3 wk after
Sweet William
Dianthus barbatus
5 – 19 Mar
6-8 wk
30 Apr
0 wk
5 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
23 Mar – 6 Apr
9 Apr
6-8 wk
18 May
21 May
3 wk after
15 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
27 Mar – 10 Apr
9 Apr
6-8 wk
22 May
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
31 Mar – 28 Apr
23 Apr
4-8 wk
26 May
4 wk after
26 May
4 wk after
Foxglove
Digitalis purpurea
19 Feb – 5 Mar
8-10 wk
30 Apr
0 wk
13 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
4 Mar – 1 Apr
21 May
8-12 wk
27 May
16 Jul
4 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
23 Mar – 6 Apr
19 Apr
6-8 wk
18 May
31 May
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 Apr
4-6 wk
27 May
4 wk after
Chinese lantern
Physalis alkekengi
19 Feb – 5 Mar
19 Apr
8-10 wk
30 Apr
14 Jun
0 wk
Love in a mist
Nigella damascena
30 Apr
5 Jul
0 wk
24 Apr
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
23 Mar – 6 Apr
30 Mar
6-8 wk
18 May
3 wk after
15 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
5 Feb – 5 Mar
19 Apr
8-12 wk
30 Apr
14 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
23 Feb – 23 Mar
26 Mar
8-12 wk
18 May
21 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
23 Feb – 23 Mar
26 Mar
8-12 wk
18 May
21 May
3 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
23 Mar – 6 Apr
9 Apr
6-8 wk
18 May
21 May
3 wk after
Corn poppy
Papaver rhoeas
30 Apr
20 Jul
0 wk
24 Apr
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
5 Feb – 5 Mar
15 May
8-12 wk
30 Apr
10 Jul
0 wk
5 May
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
18 Mar – 1 Apr
5 Apr
8-10 wk
27 May
31 May
4 wk after
Sweet pea
Lathyrus odoratus
5 – 26 Mar
5 Jun
5-8 wk
30 Apr
10 Jul
0 wk
Stock
Matthiola incana
5 – 19 Mar
8 Jun
6-8 wk
30 Apr
20 Jul
0 wk
13 May
10 Jul
2 wk after
Wormwood
Artemisia absinthium
5 – 19 Mar
9 May
6-8 wk
30 Apr
20 Jun
0 wk
13 May
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
6 – 20 Apr
18 Apr
4-6 wk
18 May
3 wk after
Garden pansy
Viola × wittrockiana
19 Feb – 5 Mar
25 May
8-10 wk
30 Apr
20 Jul
0 wk
5 May
10 Jul
1 wk after
Petunia
Petunia
Fleece
23 Feb – 23 Mar
26 Mar
8-12 wk
18 May
21 May
3 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Mar
3 May
6-8 wk
30 Apr
14 Jun
0 wk
10 Jun
6 wk after
Common zinnia
Zinnia elegans
Fleece
6 – 20 Apr
3 May
4-6 wk
18 May
31 May
3 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
13 – 27 Apr
10 May
3-5 wk
18 May
31 May
3 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
6 – 20 Apr
1 May
4-6 wk
18 May
29 May
3 wk after
26 May
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
4 Mar – 1 Apr
25 Apr
8-12 wk
27 May
20 Jun
4 wk after
Bee balm
Monarda didyma
5 Feb – 5 Mar
25 Apr
8-12 wk
30 Apr
20 Jun
0 wk
26 May
10 Jun
4 wk after
Yarrow
Achillea millefolium
5 – 19 Mar
9 Apr
6-8 wk
30 Apr
21 May
0 wk
13 May
2 wk after
Safflower
Carthamus tinctorius
30 Apr
20 Jun
0 wk
24 Apr
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
5 – 19 Mar
29 May
6-8 wk
30 Apr
10 Jul
0 wk
15 Mar
30 Jun
7 wk before
Bishop's flower
Ammi majus
19 Mar – 2 Apr
12 Jun
4-6 wk
30 Apr
10 Jul
0 wk
13 May
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
23 Feb – 9 Mar
28 Feb
10-12 wk
18 May
3 wk after
Sunflower
Helianthus annuus
29 Apr – 6 May
12 Jun
3-4 wk
27 May
3 Jul
4 wk after
26 May
23 Jun
4 wk after
China aster
Callistephus chinensis
1 – 15 Apr
1 Jun
6-8 wk
27 May
13 Jul
4 wk after
10 Jun
3 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
5 – 19 Mar
19 Apr
6-8 wk
30 Apr
31 May
0 wk
26 May
4 wk after
Hollyhock
Alcea rosea
5 – 19 Mar
6-8 wk
30 Apr
0 wk
13 May
2 wk after
Alpine delphinium
Delphinium elatum
5 Feb – 5 Mar
25 Apr
8-12 wk
30 Apr
20 Jun
0 wk
26 May
10 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
23 Mar – 6 Apr
19 Apr
6-8 wk
18 May
31 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Mar
22 May
6-8 wk
30 Apr
3 Jul
0 wk
10 Jun
23 Jun
6 wk after
Wood sage
Salvia nemorosa
19 Feb – 5 Mar
15 Apr
8-10 wk
30 Apr
10 Jun
0 wk
26 May
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
9 Mar – 6 Apr
19 Apr
6-10 wk
18 May
31 May
3 wk after
California goldenpoppy
Eschscholzia californica
30 Apr
18 Jul
0 wk
24 Apr
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
18 Mar – 1 Apr
24 Apr
8-10 wk
27 May
19 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
5 – 19 Mar
9 May
6-8 wk
30 Apr
20 Jun
0 wk
13 May
10 Jun
2 wk after