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0.9°
Near frost tomorrow at 23:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 20 May Frost 9 of 10 years · 20 years of data
Frost-free season 72 days 20 May – 31 Jul
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

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

Herbs

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