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Method
Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 4 years · 20 years of data
Frost-free season 115 days 29 May – 21 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)
10 – 24 Apr
16 Jun
5-7 wk
29 May
21 Jul
0 wk
22 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
28 Jun
4-6 wk
29 May
26 Jul
0 wk
22 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
17 Mar – 14 Apr
16 Apr
8-12 wk
9 Jun
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
11 Jun
5-7 wk
29 May
16 Jul
0 wk
17 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
6 – 13 Jun
3-4 wk
4 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
30 May – 6 Jun
4-5 wk
4 Jul
5 wk after
4 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
6 Mar – 3 Apr
1 Apr
8-12 wk
29 May
0 wk
8 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
16 Jun
1 wk before
22 May
6 Jun
1 wk before
Maize
Zea mays
Fleece
12 – 19 May
31 May
3-4 wk
9 Jun
21 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
3 Jul
3-4 wk
4 Jun
24 Jul
1 wk after
8 Jun
14 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
6 Jul
0 wk
17 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
11 Jun
5-7 wk
29 May
16 Jul
0 wk
17 May
6 Jul
2 wk before
Potato
Solanum tuberosum
22 Apr – 6 May
1 Jun
4-6 wk
3 Jun
29 Jun
1 wk after
3 Jun
19 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
21 Jun
5-7 wk
29 May
26 Jul
0 wk
22 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
6 – 13 Jun
15 Jun
3-4 wk
4 Jul
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
9 Jun
3-4 wk
4 Jun
30 Jun
1 wk after
8 Jun
20 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
10 Jul
3-4 wk
29 May
31 Jul
0 wk
22 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
19 Apr – 3 May
2 Jun
2-4 wk
17 May
16 Jun
2 wk before
17 May
6 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
16 Jun
1 wk before
22 May
6 Jun
1 wk before
Spinach
Spinacia oleracea
1 – 8 May
25 Jul
3-4 wk
29 May
15 Aug
0 wk
11 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
20 May – 3 Jun
17 Jun
2-4 wk
17 Jun
1 Jul
3 wk after
4 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
25 Jun
3-4 wk
29 May
16 Jul
0 wk
22 May
6 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
23 May – 6 Jun
24 May
4-6 wk
4 Jul
5 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
21 May
8-10 wk
29 May
16 Jul
0 wk
19 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
22 May
24 Jul
1 wk before
Wild chives
Allium schoenoprasum
3 – 17 Apr
4 Jun
6-8 wk
29 May
16 Jul
0 wk
22 May
6 Jul
1 wk before
Spearmint
Mentha spicata
6 Mar – 3 Apr
21 May
8-12 wk
29 May
16 Jul
0 wk
19 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
29 May
13 Aug
0 wk
8 Jun
3 Aug
1 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
6 May
8-10 wk
4 Jun
1 Jul
1 wk after
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
11 May
8-10 wk
29 May
6 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
19 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
22 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
31 Mar
10-14 wk
4 Jun
9 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
6 – 13 Jun
3-4 wk
4 Jul
5 wk after
Cornflower
Centaurea cyanus
29 May
16 Jul
0 wk
22 May
6 Jul
1 wk before
Statice
Limonium sinuatum
8 – 22 Apr
4 May
8-10 wk
17 Jun
29 Jun
3 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
22 Apr – 6 May
18 May
6-8 wk
17 Jun
29 Jun
3 wk after
6 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
20 May
6-8 wk
12 Jun
1 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
24 Apr – 22 May
3 Jun
4-8 wk
19 Jun
1 Jul
3 wk after
19 Jun
21 Jun
3 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
8 Jun
1 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
16 Jun
8-12 wk
4 Jul
11 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
22 Apr – 6 May
28 May
6-8 wk
17 Jun
9 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
3 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
19 Apr
8-10 wk
4 Jun
14 Jun
1 wk after
Love in a mist
Nigella damascena
29 May
1 Jul
0 wk
22 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
22 Apr – 6 May
8 May
6-8 wk
17 Jun
19 Jun
3 wk after
6 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
19 Apr
8-12 wk
4 Jun
14 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
17 Mar – 14 Apr
22 Mar
8-12 wk
9 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
11 Apr – 9 May
16 Apr
8-12 wk
4 Jul
5 wk after
Globe amaranth
Gomphrena globosa
9 – 23 May
6-8 wk
4 Jul
5 wk after
Corn poppy
Papaver rhoeas
29 May
16 Jul
0 wk
22 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
11 May
8-12 wk
29 May
6 Jul
0 wk
3 Jun
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
25 Apr – 9 May
14 May
8-10 wk
4 Jul
9 Jul
5 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
1 Jun
5-8 wk
29 May
6 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
4 Jun
6-8 wk
29 May
16 Jul
0 wk
8 Jun
6 Jul
1 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
23 May – 6 Jun
4-6 wk
4 Jul
5 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
21 May
8-10 wk
29 May
16 Jul
0 wk
3 Jun
6 Jul
1 wk after
Petunia
Petunia
25 Mar – 22 Apr
4 May
8-12 wk
17 Jun
29 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
1 wk after
4 Jul
5 wk after
Common zinnia
Zinnia elegans
6 – 20 May
29 May
4-6 wk
17 Jun
26 Jun
3 wk after
Common morning glory
Ipomoea purpurea
30 May – 13 Jun
31 May
3-5 wk
4 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
6 – 20 May
3 Jun
4-6 wk
17 Jun
1 Jul
3 wk after
4 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
16 May
8-12 wk
16 Jul
7 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
21 Apr
8-12 wk
29 May
16 Jun
0 wk
19 Jun
3 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
5 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Safflower
Carthamus tinctorius
29 May
16 Jun
0 wk
22 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
20 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
8 Jun
4-6 wk
29 May
6 Jul
0 wk
8 Jun
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
25 Mar – 8 Apr
2 Apr
10-12 wk
17 Jun
3 wk after
Sunflower
Helianthus annuus
20 – 27 May
8 Jun
3-4 wk
17 Jun
29 Jun
3 wk after
19 Jun
19 Jun
3 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
28 May
6-8 wk
17 Jun
9 Jul
3 wk after
4 Jul
5 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
28 May
6-8 wk
9 Jun
9 Jul
2 wk after
4 Jul
5 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
21 Apr
8-12 wk
29 May
16 Jun
0 wk
19 Jun
3 wk after
African marigold
Tagetes erecta
22 Apr – 6 May
28 May
6-8 wk
17 Jun
9 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
18 May
6-8 wk
4 Jun
29 Jun
1 wk after
4 Jul
5 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
11 Apr
8-10 wk
29 May
6 Jun
0 wk
19 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
25 Apr – 23 May
10 May
6-10 wk
4 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
29 May
16 Jul
0 wk
22 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
24 Apr
8-10 wk
17 Jun
19 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
8 Jun
1 wk after