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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 92 days 13 Jun – 13 Sep
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)
25 Apr – 9 May
15 Jun
5-7 wk
13 Jun
20 Jul
0 wk
17 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
27 Jun
4-6 wk
13 Jun
25 Jul
0 wk
17 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
28 Mar
8-12 wk
19 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
10 Jun
5-7 wk
13 Jun
15 Jul
0 wk
13 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
29 May – 5 Jun
3-4 wk
26 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
1 Jun
4-5 wk
26 Jun
29 Jun
2 wk after
18 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
24 Jun – 1 Jul
3-4 wk
22 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
21 Mar – 18 Apr
31 Mar
8-12 wk
13 Jun
0 wk
13 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
17 Jun
1 wk after
17 Jun
1 wk after
Maize
Zea mays
Fleece
22 – 29 May
3-4 wk
19 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
28 Jun
3-4 wk
15 Jun
19 Jul
0 wk
4 Jul
9 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
5 Jul
0 wk
13 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
10 Jun
5-7 wk
13 Jun
15 Jul
0 wk
13 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
18 May – 1 Jun
21 May
4-6 wk
29 Jun
2 wk after
29 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
20 Jun
5-7 wk
13 Jun
25 Jul
0 wk
17 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
29 May – 5 Jun
19 Jun
3-4 wk
26 Jun
10 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
18 – 25 May
26 May
3-4 wk
15 Jun
16 Jun
0 wk
4 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
22 Jun
4-6 wk
13 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
9 Jul
3-4 wk
13 Jun
30 Jul
0 wk
17 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
22 Jun
4-6 wk
13 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 May
30 May
2-4 wk
13 Jun
13 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
24 Jul
3-4 wk
13 Jun
14 Aug
0 wk
9 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jul
4-6 wk
26 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
29 May – 12 Jun
29 May
2-4 wk
26 Jun
2 wk after
1 Aug
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
22 Jun
4-6 wk
13 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
24 Jun
3-4 wk
13 Jun
15 Jul
0 wk
17 Jun
5 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
Fleece
15 – 29 May
28 May
4-6 wk
26 Jun
2 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
20 May
8-10 wk
13 Jun
15 Jul
0 wk
18 Jul
5 wk after
Dill
Anethum graveolens
17 Jun
19 Jul
1 wk after
Wild chives
Allium schoenoprasum
18 Apr – 2 May
3 Jun
6-8 wk
13 Jun
15 Jul
0 wk
17 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
21 Mar – 18 Apr
20 May
8-12 wk
13 Jun
15 Jul
0 wk
18 Jul
5 wk after
Coriander
Coriandrum sativum
13 Jun
8 Aug
0 wk
4 Jul
29 Jul
3 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
5 May
8-10 wk
15 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
4 – 18 Apr
10 May
8-10 wk
13 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
24 May
6-8 wk
13 Jun
5 Jul
0 wk
18 Jul
5 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
24 May
6-8 wk
13 Jun
5 Jul
0 wk
17 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
24 Mar
10-14 wk
15 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
Fleece
29 May – 5 Jun
4 Jun
3-4 wk
26 Jun
2 wk after
Cornflower
Centaurea cyanus
13 Jun
15 Jul
0 wk
17 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
17 Apr – 1 May
23 Apr
8-10 wk
26 Jun
2 wk after
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
1 – 15 May
7 May
6-8 wk
26 Jun
2 wk after
26 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
29 Apr – 13 May
10 May
6-8 wk
24 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
9 May – 6 Jun
6 Jun
4-8 wk
4 Jul
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
22 Apr – 20 May
15 Jun
8-12 wk
15 Jul
10 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 May
17 May
6-8 wk
26 Jun
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
2 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
14 Apr
8-10 wk
15 Jun
0 wk
Love in a mist
Nigella damascena
13 Jun
30 Jun
0 wk
17 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
1 – 15 May
6-8 wk
26 Jun
2 wk after
26 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
14 Apr
8-12 wk
15 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
21 Mar – 18 Apr
21 Mar
8-12 wk
13 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
3 Apr – 1 May
20 Apr
8-12 wk
26 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
1 – 15 May
4 May
6-8 wk
26 Jun
2 wk after
Corn poppy
Papaver rhoeas
13 Jun
15 Jul
0 wk
17 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
10 May
8-12 wk
13 Jun
5 Jul
0 wk
29 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
17 Apr – 1 May
16 May
8-10 wk
26 Jun
11 Jul
2 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
31 May
5-8 wk
13 Jun
5 Jul
0 wk
Stock
Matthiola incana
18 Apr – 2 May
3 Jun
6-8 wk
13 Jun
15 Jul
0 wk
4 Jul
5 Jul
3 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
4 May
6-8 wk
13 Jun
15 Jun
0 wk
4 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
15 – 29 May
4-6 wk
26 Jun
2 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
20 May
8-10 wk
13 Jun
15 Jul
0 wk
29 Jun
5 Jul
2 wk after
Petunia
Petunia
3 Apr – 1 May
23 Apr
8-12 wk
26 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
28 Apr
6-8 wk
15 Jun
0 wk
1 Aug
7 wk after
Common zinnia
Zinnia elegans
15 – 29 May
28 May
4-6 wk
26 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
22 May – 5 Jun
4 Jun
3-5 wk
26 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 May
24 May
4-6 wk
26 Jun
2 wk after
1 Aug
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
22 Apr – 20 May
20 May
8-12 wk
15 Jul
15 Jul
5 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
20 Apr
8-12 wk
13 Jun
15 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
15 Jun
0 wk
17 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
24 May
6-8 wk
13 Jun
5 Jul
0 wk
26 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
2 – 16 May
7 Jun
4-6 wk
13 Jun
5 Jul
0 wk
4 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
27 Mar – 10 Apr
5 Apr
10-12 wk
19 Jun
1 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
1 Jun
3-4 wk
26 Jun
2 wk after
18 Jul
5 wk after
China aster
Callistephus chinensis
1 – 15 May
21 May
6-8 wk
26 Jun
2 Jul
2 wk after
1 Aug
7 wk after
Annual phlox
Phlox drummondii
24 Apr – 8 May
17 May
6-8 wk
19 Jun
28 Jun
1 wk after
1 Aug
7 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
20 Apr
8-12 wk
13 Jun
15 Jun
0 wk
18 Jul
5 wk after
African marigold
Tagetes erecta
1 – 15 May
17 May
6-8 wk
26 Jun
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
11 May
6-8 wk
15 Jun
22 Jun
0 wk
1 Aug
7 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
10 Apr
8-10 wk
13 Jun
0 wk
18 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
17 Apr – 15 May
14 May
6-10 wk
26 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
15 Jul
0 wk
17 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
17 Apr – 1 May
20 Apr
8-10 wk
26 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
4 May
6-8 wk
13 Jun
15 Jun
0 wk
4 Jul
3 wk after