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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 122 days 13 Jun – 13 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)
25 Apr – 9 May
14 Jun
5-7 wk
13 Jun
19 Jul
0 wk
17 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
26 Jun
4-6 wk
13 Jun
24 Jul
0 wk
17 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
5 Apr – 3 May
8-12 wk
28 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
9 Jun
5-7 wk
13 Jun
14 Jul
0 wk
13 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 Jun
4-5 wk
26 Jul
6 wk after
1 Aug
7 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 Jul
3-4 wk
31 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
21 Mar – 18 Apr
30 Mar
8-12 wk
13 Jun
0 wk
4 Jul
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 Jun
1 wk after
17 Jun
1 wk after
Maize
Zea mays
Season too short
17 – 24 May
3-4 wk
14 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 – 31 May
3 Jul
3-4 wk
21 Jun
24 Jul
1 wk after
4 Jul
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
4 Jul
0 wk
13 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
9 Jun
5-7 wk
13 Jun
14 Jul
0 wk
13 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
18 May – 1 Jun
1 Jun
4-6 wk
29 Jun
29 Jun
2 wk after
29 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
19 Jun
5-7 wk
13 Jun
24 Jul
0 wk
17 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
31 May – 7 Jun
3-4 wk
28 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 – 31 May
16 Jun
3-4 wk
21 Jun
7 Jul
1 wk after
4 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
8 Jul
3-4 wk
13 Jun
29 Jul
0 wk
17 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 May
31 May
2-4 wk
13 Jun
14 Jun
0 wk
13 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
17 Jun
1 wk after
17 Jun
1 wk after
Spinach
Spinacia oleracea
16 – 23 May
23 Jul
3-4 wk
13 Jun
13 Aug
0 wk
9 Jun
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jul
4-6 wk
26 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
19 Apr – 3 May
6-8 wk
14 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
17 – 31 May
28 May
2-4 wk
14 Jun
0 wk
4 Jul
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
23 Jun
3-4 wk
13 Jun
14 Jul
0 wk
17 Jun
4 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
17 – 31 May
4-6 wk
28 Jun
2 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
19 May
8-10 wk
13 Jun
14 Jul
0 wk
18 Jul
5 wk after
Dill
Anethum graveolens
17 Jun
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
18 Apr – 2 May
2 Jun
6-8 wk
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
21 Mar – 18 Apr
19 May
8-12 wk
13 Jun
14 Jul
0 wk
18 Jul
5 wk after
Coriander
Coriandrum sativum
13 Jun
13 Aug
0 wk
4 Jul
3 Aug
3 wk after
Garden sage
Salvia officinalis
12 – 26 Apr
4 May
8-10 wk
21 Jun
29 Jun
1 wk after
Common thyme
Thymus vulgaris
4 – 18 Apr
9 May
8-10 wk
13 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
18 Jul
5 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
17 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
15 Mar – 12 Apr
5 Apr
10-14 wk
21 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
31 May – 7 Jun
3-4 wk
28 Jun
2 wk after
Cornflower
Centaurea cyanus
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Greenhouse
5 – 19 Apr
5 May
8-10 wk
14 Jun
30 Jun
0 wk
Sweet William
Dianthus barbatus
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
29 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
19 Apr – 3 May
19 May
6-8 wk
14 Jun
30 Jun
0 wk
24 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
26 Apr – 10 May
28 Apr
6-8 wk
21 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
9 May – 6 Jun
12 May
4-8 wk
4 Jul
3 wk after
4 Jul
3 wk after
Foxglove
Digitalis purpurea
4 – 18 Apr
8-10 wk
13 Jun
0 wk
4 Jul
3 wk after
Busy lizzie
Impatiens walleriana
3 – 31 May
4 May
8-12 wk
26 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
3 – 17 May
6-8 wk
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 May – 12 Jun
4-6 wk
10 Jul
4 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Apr
19 Apr
8-10 wk
21 Jun
1 wk after
Love in a mist
Nigella damascena
13 Jun
29 Jun
0 wk
17 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
19 Apr – 3 May
9 May
6-8 wk
14 Jun
20 Jun
0 wk
24 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
29 Mar – 26 Apr
19 Apr
8-12 wk
21 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
5 Apr – 3 May
8-12 wk
28 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
5 Apr – 3 May
8-12 wk
28 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
3 – 17 May
6-8 wk
28 Jun
2 wk after
Corn poppy
Papaver rhoeas
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
9 May
8-12 wk
13 Jun
4 Jul
0 wk
29 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
1 – 15 May
8-10 wk
10 Jul
4 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
30 May
5-8 wk
13 Jun
4 Jul
0 wk
Stock
Matthiola incana
18 Apr – 2 May
2 Jun
6-8 wk
13 Jun
14 Jul
0 wk
4 Jul
4 Jul
3 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
3 May
6-8 wk
13 Jun
14 Jun
0 wk
4 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
17 – 31 May
4-6 wk
28 Jun
2 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
19 May
8-10 wk
13 Jun
14 Jul
0 wk
29 Jun
4 Jul
2 wk after
Petunia
Petunia
Greenhouse
22 Mar – 19 Apr
5 May
8-12 wk
14 Jun
30 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
26 Apr – 10 May
3 May
6-8 wk
21 Jun
1 wk after
1 Aug
7 wk after
Common zinnia
Zinnia elegans
Fleece
17 – 31 May
4-6 wk
28 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
24 May – 7 Jun
3-5 wk
28 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
17 – 31 May
4-6 wk
28 Jun
2 wk after
18 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
17 Apr – 15 May
26 Apr
8-12 wk
10 Jul
4 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
19 Apr
8-12 wk
13 Jun
14 Jun
0 wk
18 Jul
5 wk after
Yarrow
Achillea millefolium
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
4 Jul
3 wk after
Safflower
Carthamus tinctorius
13 Jun
14 Jun
0 wk
17 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
26 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
2 – 16 May
6 Jun
4-6 wk
13 Jun
4 Jul
0 wk
4 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
5 – 19 Apr
10-12 wk
28 Jun
2 wk after
Sunflower
Helianthus annuus
12 – 19 Jun
13 Jun
3-4 wk
10 Jul
4 wk after
18 Jul
5 wk after
China aster
Callistephus chinensis
15 – 29 May
2 Jun
6-8 wk
10 Jul
14 Jul
4 wk after
1 Aug
7 wk after
Annual phlox
Phlox drummondii
Fleece
19 Apr – 3 May
25 Apr
6-8 wk
14 Jun
0 wk
18 Jul
5 wk after
Hollyhock
Alcea rosea
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
4 Jul
3 wk after
Alpine delphinium
Delphinium elatum
21 Mar – 18 Apr
19 Apr
8-12 wk
13 Jun
14 Jun
0 wk
18 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
3 – 17 May
6-8 wk
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
26 Apr – 10 May
23 May
6-8 wk
21 Jun
4 Jul
1 wk after
1 Aug
7 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
9 Apr
8-10 wk
13 Jun
0 wk
18 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
19 Apr – 17 May
20 Apr
6-10 wk
28 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
1 – 15 May
9 May
8-10 wk
10 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
3 May
6-8 wk
13 Jun
14 Jun
0 wk
4 Jul
3 wk after