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Method
Rel. frost
Last spring frost (0°C) 21 May Frost 1 of 4 years · 20 years of data
Frost-free season 134 days 21 May – 2 Oct
Probability that frost is over

75% = 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)
2 – 16 Apr
18 Jun
5-7 wk
21 May
23 Jul
0 wk
14 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 Apr
30 Jun
4-6 wk
21 May
28 Jul
0 wk
14 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
17 Mar – 14 Apr
15 Apr
8-12 wk
9 Jun
10 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 Apr
13 Jun
5-7 wk
21 May
18 Jul
0 wk
9 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
29 May – 5 Jun
9 Jun
3-4 wk
26 Jun
30 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 May
5 Jun
4-5 wk
26 Jun
3 Jul
5 wk after
26 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
26 Feb – 26 Mar
3 Apr
8-12 wk
21 May
29 May
0 wk
31 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
14 May
18 Jun
1 wk before
14 May
8 Jun
1 wk before
Maize
Zea mays
12 – 19 May
30 May
3-4 wk
9 Jun
20 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
7 Jul
3-4 wk
27 May
28 Jul
1 wk after
31 May
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 May
8 Jul
0 wk
9 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
2 – 16 Apr
13 Jun
5-7 wk
21 May
18 Jul
0 wk
9 May
8 Jul
2 wk before
Potato
Solanum tuberosum
14 – 28 Apr
9 Jun
4-6 wk
26 May
7 Jul
1 wk after
26 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 Apr
23 Jun
5-7 wk
21 May
28 Jul
0 wk
14 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
29 May – 5 Jun
20 Jun
3-4 wk
26 Jun
11 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
23 Jun
3-4 wk
27 May
14 Jul
1 wk after
31 May
4 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 Apr
25 Jun
4-6 wk
21 May
23 Jul
0 wk
Lettuce
Lactuca sativa
23 – 30 Apr
12 Jul
3-4 wk
21 May
2 Aug
0 wk
14 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
9 – 23 Apr
25 Jun
4-6 wk
21 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
11 – 25 Apr
4 Jun
2-4 wk
9 May
18 Jun
2 wk before
9 May
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
14 May
18 Jun
1 wk before
14 May
8 Jun
1 wk before
Spinach
Spinacia oleracea
23 – 30 Apr
27 Jul
3-4 wk
21 May
17 Aug
0 wk
3 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
17 Jun – 1 Jul
4-6 wk
29 Jul
10 wk after
Garden tomato
Solanum lycopersicum
14 – 28 Apr
9 May
6-8 wk
9 Jun
20 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 May
22 Jun
2-4 wk
9 Jun
6 Jul
3 wk after
26 Jun
26 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 Apr
25 Jun
4-6 wk
21 May
23 Jul
0 wk
Garden pea
Pisum sativum
23 – 30 Apr
27 Jun
3-4 wk
21 May
18 Jul
0 wk
14 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
15 – 29 May
29 May
4-6 wk
26 Jun
26 Jun
5 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
23 May
8-10 wk
21 May
18 Jul
0 wk
11 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
14 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
26 Mar – 9 Apr
6 Jun
6-8 wk
21 May
18 Jul
0 wk
14 May
8 Jul
1 wk before
Spearmint
Mentha spicata
26 Feb – 26 Mar
23 May
8-12 wk
21 May
18 Jul
0 wk
11 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
21 May
17 Aug
0 wk
31 May
7 Aug
1 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
8 May
8-10 wk
27 May
3 Jul
1 wk after
Common thyme
Thymus vulgaris
12 – 26 Mar
13 May
8-10 wk
21 May
8 Jul
0 wk
Oregano
Origanum vulgare
26 Mar – 9 Apr
27 May
6-8 wk
21 May
8 Jul
0 wk
11 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
26 Mar – 9 Apr
27 May
6-8 wk
21 May
8 Jul
0 wk
14 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
18 Feb – 18 Mar
9 Apr
10-14 wk
27 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
29 May – 5 Jun
5 Jun
3-4 wk
26 Jun
26 Jun
5 wk after
Cornflower
Centaurea cyanus
21 May
18 Jul
0 wk
14 May
8 Jul
1 wk before
Statice
Limonium sinuatum
31 Mar – 14 Apr
9 May
8-10 wk
9 Jun
4 Jul
3 wk after
Sweet William
Dianthus barbatus
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
26 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
23 May
6-8 wk
9 Jun
4 Jul
3 wk after
29 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
16 Apr – 14 May
10 Jun
4-8 wk
11 Jun
8 Jul
3 wk after
11 Jun
28 Jun
3 wk after
Foxglove
Digitalis purpurea
12 – 26 Mar
8-10 wk
21 May
0 wk
31 May
1 wk after
Busy lizzie
Impatiens walleriana
3 Apr – 1 May
2 Jul
8-12 wk
26 Jun
27 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
2 Jun
6-8 wk
9 Jun
14 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
28 Apr – 12 May
15 May
4-6 wk
9 Jun
12 Jun
3 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
23 Apr
8-10 wk
27 May
18 Jun
1 wk after
Love in a mist
Nigella damascena
21 May
3 Jul
0 wk
14 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
14 – 28 Apr
13 May
6-8 wk
9 Jun
24 Jun
3 wk after
29 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
23 Apr
8-12 wk
27 May
18 Jun
1 wk after
Cardoon
Cynara cardunculus
17 Mar – 14 Apr
24 Mar
8-12 wk
9 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
3 Apr – 1 May
21 Apr
8-12 wk
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
1 – 15 May
5 May
6-8 wk
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
21 May
18 Jul
0 wk
14 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
26 Feb – 26 Mar
13 May
8-12 wk
21 May
8 Jul
0 wk
26 May
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
17 Apr – 1 May
19 May
8-10 wk
26 Jun
14 Jul
5 wk after
Sweet pea
Lathyrus odoratus
26 Mar – 16 Apr
3 Jun
5-8 wk
21 May
8 Jul
0 wk
Stock
Matthiola incana
26 Mar – 9 Apr
6 Jun
6-8 wk
21 May
18 Jul
0 wk
31 May
8 Jul
1 wk after
Wormwood
Artemisia absinthium
26 Mar – 9 Apr
7 May
6-8 wk
21 May
18 Jun
0 wk
31 May
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
15 – 29 May
4-6 wk
26 Jun
5 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Mar
23 May
8-10 wk
21 May
18 Jul
0 wk
26 May
8 Jul
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
9 May
8-12 wk
9 Jun
4 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
7 May
6-8 wk
27 May
18 Jun
1 wk after
26 Jun
5 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
14 Jun
4-6 wk
9 Jun
12 Jul
3 wk after
Common morning glory
Ipomoea purpurea
22 May – 5 Jun
5 Jun
3-5 wk
26 Jun
26 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
10 Jun
4-6 wk
9 Jun
8 Jul
3 wk after
26 Jun
28 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
15 Apr – 13 May
21 May
8-12 wk
8 Jul
16 Jul
7 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
23 Apr
8-12 wk
21 May
18 Jun
0 wk
11 Jun
3 wk after
Yarrow
Achillea millefolium
26 Mar – 9 Apr
7 Apr
6-8 wk
21 May
0 wk
31 May
1 wk after
Safflower
Carthamus tinctorius
21 May
18 Jun
0 wk
14 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
26 Mar – 9 Apr
27 May
6-8 wk
21 May
8 Jul
0 wk
12 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
9 – 23 Apr
10 Jun
4-6 wk
21 May
8 Jul
0 wk
31 May
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
3 – 17 Apr
3 Apr
10-12 wk
26 Jun
5 wk after
Sunflower
Helianthus annuus
12 – 19 May
17 Jun
3-4 wk
9 Jun
8 Jul
3 wk after
11 Jun
28 Jun
3 wk after
China aster
Callistephus chinensis
14 – 28 Apr
6 Jun
6-8 wk
9 Jun
18 Jul
3 wk after
26 Jun
8 Jul
5 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
2 Jun
6-8 wk
1 Jun
14 Jul
2 wk after
26 Jun
4 Jul
5 wk after
Hollyhock
Alcea rosea
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
31 May
1 wk after
Alpine delphinium
Delphinium elatum
26 Feb – 26 Mar
23 Apr
8-12 wk
21 May
18 Jun
0 wk
11 Jun
3 wk after
African marigold
Tagetes erecta
14 – 28 Apr
2 Jun
6-8 wk
9 Jun
14 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
27 May
6-8 wk
27 May
8 Jul
1 wk after
26 Jun
28 Jun
5 wk after
Wood sage
Salvia nemorosa
12 – 26 Mar
13 Apr
8-10 wk
21 May
8 Jun
0 wk
11 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
17 Apr – 15 May
15 May
6-10 wk
26 Jun
26 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
21 May
18 Jul
0 wk
14 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
8 May
8-10 wk
9 Jun
3 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
26 Mar – 9 Apr
7 May
6-8 wk
21 May
18 Jun
0 wk
31 May
8 Jun
1 wk after