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Method
Rel. frost
Last spring frost (0°C) 25 May Frost 1 of 10 years · 20 years of data
Frost-free season 136 days 25 May – 8 Oct
Probability that frost is over

90% = 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)
6 – 20 Apr
16 Jun
5-7 wk
25 May
21 Jul
0 wk
29 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
28 Jun
4-6 wk
25 May
26 Jul
0 wk
29 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
11 Jun
5-7 wk
25 May
16 Jul
0 wk
25 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
3-4 wk
9 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
2 – 9 Jun
8 Jun
4-5 wk
7 Jul
6 wk after
13 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
2 – 30 Mar
1 Apr
8-12 wk
25 May
27 May
0 wk
15 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
29 May
16 Jun
1 wk after
29 May
6 Jun
1 wk after
Maize
Zea mays
Greenhouse
28 Apr – 5 May
3-4 wk
26 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 May
5 Jul
3-4 wk
2 Jun
26 Jul
1 wk after
15 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
6 Jul
0 wk
25 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
11 Jun
5-7 wk
25 May
16 Jul
0 wk
25 May
6 Jul
0 wk
Potato
Solanum tuberosum
29 Apr – 13 May
8 Jun
4-6 wk
10 Jun
6 Jul
2 wk after
10 Jun
26 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
21 Jun
5-7 wk
25 May
26 Jul
0 wk
29 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
24 – 31 May
3-4 wk
21 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 May
16 Jun
3-4 wk
2 Jun
7 Jul
1 wk after
15 Jun
27 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
23 Jun
4-6 wk
25 May
21 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
10 Jul
3-4 wk
25 May
31 Jul
0 wk
29 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
23 Jun
4-6 wk
25 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
2 Jun
2-4 wk
25 May
16 Jun
0 wk
25 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
29 May
16 Jun
1 wk after
29 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
27 Apr – 4 May
25 Jul
3-4 wk
25 May
15 Aug
0 wk
21 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
31 Mar – 14 Apr
5 Apr
6-8 wk
26 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
13 May
2-4 wk
9 Jun
2 wk after
29 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
23 Jun
4-6 wk
25 May
21 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
25 Jun
3-4 wk
25 May
16 Jul
0 wk
29 May
6 Jul
1 wk after

Herbs

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