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Rel. frost
Last spring frost (0°C) 22 May Frost 1 of 10 years · 20 years of data
Frost-free season 139 days 22 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)
3 – 17 Apr
16 Jun
5-7 wk
22 May
21 Jul
0 wk
26 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
28 Jun
4-6 wk
22 May
26 Jul
0 wk
26 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
11 Jun
5-7 wk
22 May
16 Jul
0 wk
22 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
9 – 16 May
3-4 wk
6 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
30 May – 6 Jun
8 Jun
4-5 wk
4 Jul
6 Jul
6 wk after
10 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
1 Apr
8-12 wk
22 May
27 May
0 wk
12 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
16 Jun
1 wk after
26 May
6 Jun
1 wk after
Maize
Zea mays
Greenhouse
25 Apr – 2 May
3-4 wk
23 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
5 Jul
3-4 wk
30 May
26 Jul
1 wk after
12 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
6 Jul
0 wk
22 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
11 Jun
5-7 wk
22 May
16 Jul
0 wk
22 May
6 Jul
0 wk
Potato
Solanum tuberosum
26 Apr – 10 May
3 Jun
4-6 wk
7 Jun
1 Jul
2 wk after
7 Jun
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
21 Jun
5-7 wk
22 May
26 Jul
0 wk
26 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
3-4 wk
18 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 May
14 Jun
3-4 wk
30 May
5 Jul
1 wk after
12 Jun
25 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
10 Jul
3-4 wk
22 May
31 Jul
0 wk
26 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
24 Apr – 8 May
2 Jun
2-4 wk
22 May
16 Jun
0 wk
22 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
16 Jun
1 wk after
26 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
24 Apr – 1 May
25 Jul
3-4 wk
22 May
15 Aug
0 wk
18 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
28 Mar – 11 Apr
28 Mar
6-8 wk
23 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
9 – 23 May
2-4 wk
6 Jun
2 wk after
26 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
25 Jun
3-4 wk
22 May
16 Jul
0 wk
26 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
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
2 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
21 May
8-10 wk
22 May
16 Jul
0 wk
26 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
26 May
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
4 Jun
6-8 wk
22 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Spearmint
Mentha spicata
27 Feb – 27 Mar
21 May
8-12 wk
22 May
16 Jul
0 wk
26 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
22 May
15 Aug
0 wk
12 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
6 May
8-10 wk
30 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Mar
11 May
8-10 wk
22 May
6 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
26 Jun
26 Jun
5 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
26 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
7 Apr
10-14 wk
30 May
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
9 – 16 May
20 May
3-4 wk
6 Jun
10 Jun
2 wk after
Cornflower
Centaurea cyanus
22 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Statice
Limonium sinuatum
9 – 23 Apr
8-10 wk
18 Jun
4 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
7 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Apr – 7 May
6-8 wk
18 Jun
4 wk after
4 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
19 Apr
6-8 wk
10 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
17 Apr – 15 May
26 May
4-8 wk
12 Jun
23 Jun
3 wk after
12 Jun
13 Jun
3 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
12 Jun
3 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
29 Apr
8-12 wk
4 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
29 Apr
6-8 wk
18 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
4 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
21 Apr
8-10 wk
30 May
16 Jun
1 wk after
Love in a mist
Nigella damascena
22 May
1 Jul
0 wk
26 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
23 Apr – 7 May
6-8 wk
18 Jun
4 wk after
4 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
21 Apr
8-12 wk
30 May
16 Jun
1 wk after
Cardoon
Cynara cardunculus
26 Mar – 23 Apr
8-12 wk
18 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
14 Mar – 11 Apr
5 Apr
8-12 wk
6 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
11 – 25 Apr
19 Apr
6-8 wk
6 Jun
2 wk after
Corn poppy
Papaver rhoeas
22 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
11 May
8-12 wk
22 May
6 Jul
0 wk
7 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
25 Apr – 9 May
8-10 wk
4 Jul
6 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
1 Jun
5-8 wk
22 May
6 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
4 Jun
6-8 wk
22 May
16 Jul
0 wk
12 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
5 May
6-8 wk
22 May
16 Jun
0 wk
12 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
25 Apr – 9 May
28 Apr
4-6 wk
6 Jun
2 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
21 May
8-10 wk
22 May
16 Jul
0 wk
7 Jun
6 Jul
2 wk after
Petunia
Petunia
26 Mar – 23 Apr
5 Apr
8-12 wk
18 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
5 May
6-8 wk
30 May
16 Jun
1 wk after
10 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
2 – 16 May
20 May
3-5 wk
6 Jun
10 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
4-6 wk
18 Jun
4 wk after
10 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Mar – 23 Apr
5 May
8-12 wk
18 Jun
30 Jun
4 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
21 Apr
8-12 wk
22 May
16 Jun
0 wk
26 Jun
5 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
5 Apr
6-8 wk
22 May
0 wk
12 Jun
3 wk after
Safflower
Carthamus tinctorius
22 May
16 Jun
0 wk
26 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
4 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
8 Jun
4-6 wk
22 May
6 Jul
0 wk
12 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
14 – 28 Mar
25 Mar
10-12 wk
6 Jun
2 wk after
Sunflower
Helianthus annuus
21 – 28 May
15 Jun
3-4 wk
18 Jun
6 Jul
4 wk after
26 Jun
26 Jun
5 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
4 Jun
6-8 wk
18 Jun
16 Jul
4 wk after
10 Jul
7 wk after
Annual phlox
Phlox drummondii
11 – 25 Apr
29 Apr
6-8 wk
6 Jun
10 Jun
2 wk after
10 Jul
7 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
12 Jun
3 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
21 Apr
8-12 wk
22 May
16 Jun
0 wk
26 Jun
5 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
29 Apr
6-8 wk
18 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
25 May
6-8 wk
30 May
6 Jul
1 wk after
10 Jul
7 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
11 Apr
8-10 wk
22 May
6 Jun
0 wk
26 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
28 Mar – 25 Apr
29 Apr
6-10 wk
6 Jun
10 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
22 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
11 May
8-10 wk
18 Jun
6 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
5 May
6-8 wk
22 May
16 Jun
0 wk
12 Jun
3 wk after