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Method
Rel. frost
Last spring frost (0°C) 22 May Frost 1 of 4 years · 20 years of data
Frost-free season 131 days 22 May – 30 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)
3 – 17 Apr
17 Jun
5-7 wk
22 May
22 Jul
0 wk
15 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
29 Jun
4-6 wk
22 May
27 Jul
0 wk
15 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
18 Mar – 15 Apr
9 Apr
8-12 wk
10 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
12 Jun
5-7 wk
22 May
17 Jul
0 wk
10 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
30 May – 6 Jun
3 Jun
3-4 wk
27 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
4 Jun
4-5 wk
27 Jun
2 Jul
5 wk after
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
2 Apr
8-12 wk
22 May
28 May
0 wk
1 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
17 Jun
1 wk before
15 May
7 Jun
1 wk before
Maize
Zea mays
13 – 20 May
24 May
3-4 wk
10 Jun
14 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
6 Jul
3-4 wk
28 May
27 Jul
1 wk after
1 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
7 Jul
0 wk
10 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
12 Jun
5-7 wk
22 May
17 Jul
0 wk
10 May
7 Jul
2 wk before
Potato
Solanum tuberosum
15 – 29 Apr
5 Jun
4-6 wk
27 May
3 Jul
1 wk after
27 May
23 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
22 Jun
5-7 wk
22 May
27 Jul
0 wk
15 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
30 May – 6 Jun
20 Jun
3-4 wk
27 Jun
11 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
20 Jun
3-4 wk
28 May
11 Jul
1 wk after
1 Jun
1 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
24 Jun
4-6 wk
22 May
22 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
11 Jul
3-4 wk
22 May
1 Aug
0 wk
15 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
24 Jun
4-6 wk
22 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 Apr
3 Jun
2-4 wk
10 May
17 Jun
2 wk before
10 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
17 Jun
1 wk before
15 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
24 Apr – 1 May
26 Jul
3-4 wk
22 May
16 Aug
0 wk
4 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
15 – 29 Apr
3 May
6-8 wk
10 Jun
14 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 May
22 Jun
2-4 wk
10 Jun
6 Jul
3 wk after
27 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
24 Jun
4-6 wk
22 May
22 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
26 Jun
3-4 wk
22 May
17 Jul
0 wk
15 May
7 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
16 – 30 May
29 May
4-6 wk
27 Jun
5 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
22 May
8-10 wk
22 May
17 Jul
0 wk
12 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
15 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
5 Jun
6-8 wk
22 May
17 Jul
0 wk
15 May
7 Jul
1 wk before
Spearmint
Mentha spicata
27 Feb – 27 Mar
22 May
8-12 wk
22 May
17 Jul
0 wk
12 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
22 May
16 Aug
0 wk
1 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
7 May
8-10 wk
28 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Mar
12 May
8-10 wk
22 May
7 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
26 May
6-8 wk
22 May
7 Jul
0 wk
12 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
26 May
6-8 wk
22 May
7 Jul
0 wk
15 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
8 Apr
10-14 wk
28 May
17 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
30 May – 6 Jun
5 Jun
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
22 May
17 Jul
0 wk
15 May
7 Jul
1 wk before
Statice
Limonium sinuatum
1 – 15 Apr
6 May
8-10 wk
10 Jun
1 Jul
3 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
27 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
3 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Apr
25 May
6-8 wk
5 Jun
6 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
17 Apr – 15 May
8 Jun
4-8 wk
12 Jun
6 Jul
3 wk after
12 Jun
26 Jun
3 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
1 Jun
1 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
29 Jun
8-12 wk
27 Jun
24 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Apr
30 May
6-8 wk
10 Jun
11 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
29 Apr – 13 May
12 May
4-6 wk
10 Jun
3 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
22 Apr
8-10 wk
28 May
17 Jun
1 wk after
Love in a mist
Nigella damascena
22 May
2 Jul
0 wk
15 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
15 – 29 Apr
10 May
6-8 wk
10 Jun
21 Jun
3 wk after
30 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
22 Apr
8-12 wk
28 May
17 Jun
1 wk after
Cardoon
Cynara cardunculus
18 Mar – 15 Apr
23 Mar
8-12 wk
10 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
4 Apr – 2 May
21 Apr
8-12 wk
27 Jun
5 wk after
Globe amaranth
Gomphrena globosa
2 – 16 May
5 May
6-8 wk
27 Jun
5 wk after
Corn poppy
Papaver rhoeas
22 May
17 Jul
0 wk
15 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
12 May
8-12 wk
22 May
7 Jul
0 wk
27 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
16 May
8-10 wk
27 Jun
11 Jul
5 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
2 Jun
5-8 wk
22 May
7 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
5 Jun
6-8 wk
22 May
17 Jul
0 wk
1 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
6 May
6-8 wk
22 May
17 Jun
0 wk
1 Jun
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
16 – 30 May
4-6 wk
27 Jun
5 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
22 May
8-10 wk
22 May
17 Jul
0 wk
27 May
7 Jul
1 wk after
Petunia
Petunia
18 Mar – 15 Apr
6 May
8-12 wk
10 Jun
1 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
6 May
6-8 wk
28 May
17 Jun
1 wk after
27 Jun
5 wk after
Common zinnia
Zinnia elegans
29 Apr – 13 May
11 Jun
4-6 wk
10 Jun
9 Jul
3 wk after
Common morning glory
Ipomoea purpurea
23 May – 6 Jun
5 Jun
3-5 wk
27 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
29 Apr – 13 May
8 Jun
4-6 wk
10 Jun
6 Jul
3 wk after
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
16 Apr – 14 May
21 May
8-12 wk
9 Jul
16 Jul
7 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
22 Apr
8-12 wk
22 May
17 Jun
0 wk
12 Jun
3 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
6 Apr
6-8 wk
22 May
0 wk
1 Jun
1 wk after
Safflower
Carthamus tinctorius
22 May
17 Jun
0 wk
15 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
26 May
6-8 wk
22 May
7 Jul
0 wk
13 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
9 Jun
4-6 wk
22 May
7 Jul
0 wk
1 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
4 – 18 Apr
10-12 wk
27 Jun
5 wk after
Sunflower
Helianthus annuus
13 – 20 May
16 Jun
3-4 wk
10 Jun
7 Jul
3 wk after
12 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
15 – 29 Apr
5 Jun
6-8 wk
10 Jun
17 Jul
3 wk after
27 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
30 May
6-8 wk
2 Jun
11 Jul
2 wk after
27 Jun
1 Jul
5 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
1 Jun
1 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
22 Apr
8-12 wk
22 May
17 Jun
0 wk
12 Jun
3 wk after
African marigold
Tagetes erecta
15 – 29 Apr
30 May
6-8 wk
10 Jun
11 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
26 May
6-8 wk
28 May
7 Jul
1 wk after
27 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
12 Apr
8-10 wk
22 May
7 Jun
0 wk
12 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
18 Apr – 16 May
15 May
6-10 wk
27 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
22 May
17 Jul
0 wk
15 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
1 – 15 Apr
7 May
8-10 wk
10 Jun
2 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
6 May
6-8 wk
22 May
17 Jun
0 wk
1 Jun
7 Jun
1 wk after