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Method
Rel. frost
Last spring frost (0°C) 23 May Frost 1 of 4 years · 20 years of data
Frost-free season 135 days 23 May – 5 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)
4 – 18 Apr
14 Jun
5-7 wk
23 May
19 Jul
0 wk
27 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
11 – 25 Apr
26 Jun
4-6 wk
23 May
24 Jul
0 wk
27 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Fleece
27 Mar – 24 Apr
10 Apr
8-12 wk
19 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Apr
9 Jun
5-7 wk
23 May
14 Jul
0 wk
23 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
31 May – 7 Jun
6 Jun
4-5 wk
5 Jul
6 wk after
11 Jul
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
12 – 19 Jun
3-4 wk
10 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
28 Feb – 28 Mar
30 Mar
8-12 wk
23 May
25 May
0 wk
13 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
14 Jun
1 wk after
27 May
4 Jun
1 wk after
Maize
Zea mays
22 – 29 May
25 May
3-4 wk
19 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
3 Jul
3-4 wk
31 May
24 Jul
1 wk after
13 Jun
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
23 May
4 Jul
0 wk
23 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Apr
9 Jun
5-7 wk
23 May
14 Jul
0 wk
23 May
4 Jul
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
5 Jun
4-6 wk
8 Jun
3 Jul
2 wk after
8 Jun
23 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Apr
19 Jun
5-7 wk
23 May
24 Jul
0 wk
27 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
7 – 14 Jun
20 Jun
3-4 wk
5 Jul
11 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
17 Jun
3-4 wk
31 May
8 Jul
1 wk after
13 Jun
28 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
11 – 25 Apr
21 Jun
4-6 wk
23 May
19 Jul
0 wk
Lettuce
Lactuca sativa
25 Apr – 2 May
8 Jul
3-4 wk
23 May
29 Jul
0 wk
27 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
11 – 25 Apr
21 Jun
4-6 wk
23 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Apr – 9 May
31 May
2-4 wk
23 May
14 Jun
0 wk
23 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 May
14 Jun
1 wk after
27 May
4 Jun
1 wk after
Spinach
Spinacia oleracea
25 Apr – 2 May
23 Jul
3-4 wk
23 May
13 Aug
0 wk
19 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
24 Jun – 8 Jul
4-6 wk
5 Aug
11 wk after
Garden tomato
Solanum lycopersicum
24 Apr – 8 May
4 May
6-8 wk
19 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
22 May – 5 Jun
22 Jun
2-4 wk
19 Jun
6 Jul
4 wk after
11 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
11 – 25 Apr
21 Jun
4-6 wk
23 May
19 Jul
0 wk
Garden pea
Pisum sativum
25 Apr – 2 May
23 Jun
3-4 wk
23 May
14 Jul
0 wk
27 May
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
24 May – 7 Jun
29 May
4-6 wk
5 Jul
6 wk after
Lemon balm
Melissa officinalis
14 – 28 Mar
19 May
8-10 wk
23 May
14 Jul
0 wk
27 Jun
4 Jul
5 wk after
Dill
Anethum graveolens
27 May
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
28 Mar – 11 Apr
2 Jun
6-8 wk
23 May
14 Jul
0 wk
27 May
4 Jul
1 wk after
Spearmint
Mentha spicata
28 Feb – 28 Mar
19 May
8-12 wk
23 May
14 Jul
0 wk
27 Jun
4 Jul
5 wk after
Coriander
Coriandrum sativum
23 May
13 Aug
0 wk
13 Jun
3 Aug
3 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
4 May
8-10 wk
31 May
29 Jun
1 wk after
Common thyme
Thymus vulgaris
14 – 28 Mar
9 May
8-10 wk
23 May
4 Jul
0 wk
Oregano
Origanum vulgare
28 Mar – 11 Apr
23 May
6-8 wk
23 May
4 Jul
0 wk
27 Jun
5 wk after
Parsley
Petroselinum crispum
28 Mar – 11 Apr
23 May
6-8 wk
23 May
4 Jul
0 wk
27 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
5 Apr
10-14 wk
31 May
14 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
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Cornflower
Centaurea cyanus
23 May
14 Jul
0 wk
27 May
4 Jul
1 wk after
Statice
Limonium sinuatum
10 – 24 Apr
7 May
8-10 wk
19 Jun
2 Jul
4 wk after
Sweet William
Dianthus barbatus
28 Mar – 11 Apr
6-8 wk
23 May
0 wk
8 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
24 Apr – 8 May
21 May
6-8 wk
19 Jun
2 Jul
4 wk after
5 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
16 – 30 Apr
23 May
6-8 wk
11 Jun
4 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
2 – 30 May
6 Jun
4-8 wk
27 Jun
4 Jul
5 wk after
27 Jun
5 wk after
Foxglove
Digitalis purpurea
14 – 28 Mar
8-10 wk
23 May
0 wk
13 Jun
3 wk after
Busy lizzie
Impatiens walleriana
12 Apr – 10 May
28 Jun
8-12 wk
5 Jul
23 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
24 Apr – 8 May
31 May
6-8 wk
19 Jun
12 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
8 – 22 May
11 May
4-6 wk
19 Jun
4 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
19 Apr
8-10 wk
31 May
14 Jun
1 wk after
Love in a mist
Nigella damascena
23 May
29 Jun
0 wk
27 May
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
24 Apr – 8 May
11 May
6-8 wk
19 Jun
22 Jun
4 wk after
5 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
19 Apr
8-12 wk
31 May
14 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
15 Mar – 12 Apr
20 Mar
8-12 wk
7 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
12 Apr – 10 May
21 Apr
8-12 wk
5 Jul
6 wk after
Globe amaranth
Gomphrena globosa
10 – 24 May
6-8 wk
5 Jul
6 wk after
Corn poppy
Papaver rhoeas
23 May
14 Jul
0 wk
27 May
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
28 Feb – 28 Mar
9 May
8-12 wk
23 May
4 Jul
0 wk
8 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
26 Apr – 10 May
17 May
8-10 wk
5 Jul
12 Jul
6 wk after
Sweet pea
Lathyrus odoratus
28 Mar – 18 Apr
30 May
5-8 wk
23 May
4 Jul
0 wk
Stock
Matthiola incana
28 Mar – 11 Apr
2 Jun
6-8 wk
23 May
14 Jul
0 wk
13 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
28 Mar – 11 Apr
3 May
6-8 wk
23 May
14 Jun
0 wk
13 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
24 May – 7 Jun
4-6 wk
5 Jul
6 wk after
Garden pansy
Viola × wittrockiana
14 – 28 Mar
19 May
8-10 wk
23 May
14 Jul
0 wk
8 Jun
4 Jul
2 wk after
Petunia
Petunia
27 Mar – 24 Apr
7 May
8-12 wk
19 Jun
2 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
3 May
6-8 wk
31 May
14 Jun
1 wk after
11 Jul
7 wk after
Common zinnia
Zinnia elegans
8 – 22 May
10 Jun
4-6 wk
19 Jun
8 Jul
4 wk after
Common morning glory
Ipomoea purpurea
31 May – 14 Jun
5 Jun
3-5 wk
5 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
8 – 22 May
6 Jun
4-6 wk
19 Jun
4 Jul
4 wk after
11 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
22 Apr – 20 May
21 May
8-12 wk
15 Jul
16 Jul
8 wk after
Bee balm
Monarda didyma
28 Feb – 28 Mar
19 Apr
8-12 wk
23 May
14 Jun
0 wk
27 Jun
5 wk after
Yarrow
Achillea millefolium
28 Mar – 11 Apr
3 Apr
6-8 wk
23 May
0 wk
13 Jun
3 wk after
Safflower
Carthamus tinctorius
23 May
14 Jun
0 wk
27 May
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
28 Mar – 11 Apr
23 May
6-8 wk
23 May
4 Jul
0 wk
5 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
11 – 25 Apr
6 Jun
4-6 wk
23 May
4 Jul
0 wk
13 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
12 – 26 Apr
10-12 wk
5 Jul
6 wk after
Sunflower
Helianthus annuus
22 – 29 May
13 Jun
3-4 wk
19 Jun
4 Jul
4 wk after
27 Jun
5 wk after
China aster
Callistephus chinensis
24 Apr – 8 May
2 Jun
6-8 wk
19 Jun
14 Jul
4 wk after
11 Jul
7 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
31 May
6-8 wk
7 Jun
12 Jul
2 wk after
11 Jul
7 wk after
Hollyhock
Alcea rosea
28 Mar – 11 Apr
6-8 wk
23 May
0 wk
13 Jun
3 wk after
Alpine delphinium
Delphinium elatum
28 Feb – 28 Mar
19 Apr
8-12 wk
23 May
14 Jun
0 wk
27 Jun
5 wk after
African marigold
Tagetes erecta
24 Apr – 8 May
31 May
6-8 wk
19 Jun
12 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
23 May
6-8 wk
31 May
4 Jul
1 wk after
11 Jul
7 wk after
Wood sage
Salvia nemorosa
14 – 28 Mar
9 Apr
8-10 wk
23 May
4 Jun
0 wk
27 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
26 Apr – 24 May
15 May
6-10 wk
5 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
23 May
14 Jul
0 wk
27 May
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
10 – 24 Apr
9 May
8-10 wk
19 Jun
4 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
28 Mar – 11 Apr
3 May
6-8 wk
23 May
14 Jun
0 wk
13 Jun
3 wk after