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Method
Rel. frost
Last spring frost (0°C) 21 May Frost 1 of 4 years · 20 years of data
Frost-free season 133 days 21 May – 1 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)
2 – 16 Apr
16 Jun
5-7 wk
21 May
21 Jul
0 wk
14 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 Apr
28 Jun
4-6 wk
21 May
26 Jul
0 wk
14 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
4 Mar – 1 Apr
9 Apr
8-12 wk
27 May
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 Apr
11 Jun
5-7 wk
21 May
16 Jul
0 wk
9 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
6 – 13 May
3 Jun
3-4 wk
3 Jun
24 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
18 – 25 May
4 Jun
4-5 wk
22 Jun
2 Jul
5 wk after
26 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
1 – 8 Jun
3-4 wk
29 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
26 Feb – 26 Mar
14 Mar
8-12 wk
21 May
0 wk
31 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
14 May
29 May
1 wk before
14 May
19 May
1 wk before
Maize
Zea mays
Fleece
29 Apr – 6 May
24 May
3-4 wk
27 May
14 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 Apr – 2 May
5 Jul
3-4 wk
23 May
26 Jul
0 wk
31 May
16 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 May
6 Jul
0 wk
9 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
2 – 16 Apr
11 Jun
5-7 wk
21 May
16 Jul
0 wk
9 May
6 Jul
2 wk before
Potato
Solanum tuberosum
14 – 28 Apr
12 May
4-6 wk
26 May
9 Jun
1 wk after
26 May
30 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 Apr
21 Jun
5-7 wk
21 May
26 Jul
0 wk
14 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
25 May – 1 Jun
8 Jun
3-4 wk
22 Jun
29 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 Apr – 2 May
10 May
3-4 wk
23 May
31 May
0 wk
31 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 Apr
23 Jun
4-6 wk
21 May
21 Jul
0 wk
Lettuce
Lactuca sativa
23 – 30 Apr
10 Jul
3-4 wk
21 May
31 Jul
0 wk
14 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
9 – 23 Apr
23 Jun
4-6 wk
21 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
11 – 25 Apr
24 May
2-4 wk
9 May
7 Jun
2 wk before
9 May
28 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
14 May
29 May
1 wk before
14 May
19 May
1 wk before
Spinach
Spinacia oleracea
23 – 30 Apr
25 Jul
3-4 wk
21 May
15 Aug
0 wk
3 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
17 Jun – 1 Jul
4-6 wk
29 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
1 – 15 Apr
3 May
6-8 wk
27 May
14 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
10 Jun
2-4 wk
3 Jun
24 Jun
2 wk after
26 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 Apr
23 Jun
4-6 wk
21 May
21 Jul
0 wk
Garden pea
Pisum sativum
23 – 30 Apr
25 Jun
3-4 wk
21 May
16 Jul
0 wk
14 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
11 – 25 May
17 May
4-6 wk
22 Jun
5 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
21 May
8-10 wk
21 May
16 Jul
0 wk
11 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
14 May
26 Jul
1 wk before
Wild chives
Allium schoenoprasum
26 Mar – 9 Apr
4 Jun
6-8 wk
21 May
16 Jul
0 wk
14 May
6 Jul
1 wk before
Spearmint
Mentha spicata
26 Feb – 26 Mar
21 May
8-12 wk
21 May
16 Jul
0 wk
11 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
21 May
15 Aug
0 wk
31 May
5 Aug
1 wk after
Garden sage
Salvia officinalis
14 – 28 Mar
6 May
8-10 wk
23 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
12 – 26 Mar
11 May
8-10 wk
21 May
6 Jul
0 wk
Oregano
Origanum vulgare
26 Mar – 9 Apr
25 May
6-8 wk
21 May
6 Jul
0 wk
11 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
26 Mar – 9 Apr
25 May
6-8 wk
21 May
6 Jul
0 wk
14 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
14 Feb – 14 Mar
7 Apr
10-14 wk
23 May
16 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
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
Cornflower
Centaurea cyanus
21 May
16 Jul
0 wk
14 May
6 Jul
1 wk before
Statice
Limonium sinuatum
25 Mar – 8 Apr
4 May
8-10 wk
3 Jun
29 Jun
2 wk after
Sweet William
Dianthus barbatus
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
26 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
8 – 22 Apr
18 May
6-8 wk
3 Jun
29 Jun
2 wk after
29 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
5 Apr – 3 May
8 Jun
4-8 wk
31 May
6 Jul
1 wk after
31 May
26 Jun
1 wk after
Foxglove
Digitalis purpurea
12 – 26 Mar
8-10 wk
21 May
0 wk
31 May
1 wk after
Busy lizzie
Impatiens walleriana
30 Mar – 27 Apr
20 Jun
8-12 wk
22 Jun
15 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
28 May
6-8 wk
3 Jun
9 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 Apr – 6 May
3 May
4-6 wk
3 Jun
2 wk after
Chinese lantern
Physalis alkekengi
14 – 28 Mar
21 Apr
8-10 wk
23 May
16 Jun
0 wk
Love in a mist
Nigella damascena
21 May
1 Jul
0 wk
14 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
8 – 22 Apr
8 May
6-8 wk
3 Jun
19 Jun
2 wk after
29 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
28 Feb – 28 Mar
21 Apr
8-12 wk
23 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
4 Mar – 1 Apr
22 Mar
8-12 wk
27 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
11 Mar – 8 Apr
25 Apr
8-12 wk
3 Jun
20 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
8 – 22 Apr
9 May
6-8 wk
3 Jun
20 Jun
2 wk after
Corn poppy
Papaver rhoeas
21 May
16 Jul
0 wk
14 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
26 Feb – 26 Mar
11 May
8-12 wk
21 May
6 Jul
0 wk
26 May
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
13 – 27 Apr
14 May
8-10 wk
22 Jun
9 Jul
5 wk after
Sweet pea
Lathyrus odoratus
26 Mar – 16 Apr
1 Jun
5-8 wk
21 May
6 Jul
0 wk
Stock
Matthiola incana
26 Mar – 9 Apr
4 Jun
6-8 wk
21 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Wormwood
Artemisia absinthium
26 Mar – 9 Apr
5 May
6-8 wk
21 May
16 Jun
0 wk
31 May
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
22 Apr – 6 May
18 May
4-6 wk
3 Jun
15 Jun
2 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Mar
21 May
8-10 wk
21 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Petunia
Petunia
11 Mar – 8 Apr
4 May
8-12 wk
3 Jun
29 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
28 Mar – 11 Apr
5 May
6-8 wk
23 May
16 Jun
0 wk
26 Jun
5 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
2 Jun
4-6 wk
3 Jun
30 Jun
2 wk after
Common morning glory
Ipomoea purpurea
18 May – 1 Jun
24 May
3-5 wk
22 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
3 Jun
4-6 wk
3 Jun
1 Jul
2 wk after
26 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
30 Mar – 27 Apr
25 May
8-12 wk
22 Jun
20 Jul
5 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
21 Apr
8-12 wk
21 May
16 Jun
0 wk
11 Jun
3 wk after
Yarrow
Achillea millefolium
26 Mar – 9 Apr
5 Apr
6-8 wk
21 May
0 wk
31 May
1 wk after
Safflower
Carthamus tinctorius
21 May
16 Jun
0 wk
14 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
26 Mar – 9 Apr
25 May
6-8 wk
21 May
6 Jul
0 wk
12 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
9 – 23 Apr
8 Jun
4-6 wk
21 May
6 Jul
0 wk
31 May
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
11 – 25 Mar
2 Apr
10-12 wk
3 Jun
11 Jun
2 wk after
Sunflower
Helianthus annuus
6 – 13 May
15 Jun
3-4 wk
3 Jun
6 Jul
2 wk after
11 Jun
26 Jun
3 wk after
China aster
Callistephus chinensis
8 – 22 Apr
4 Jun
6-8 wk
3 Jun
16 Jul
2 wk after
26 Jun
6 Jul
5 wk after
Annual phlox
Phlox drummondii
1 – 15 Apr
28 May
6-8 wk
27 May
9 Jul
1 wk after
26 Jun
29 Jun
5 wk after
Hollyhock
Alcea rosea
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
31 May
1 wk after
Alpine delphinium
Delphinium elatum
26 Feb – 26 Mar
21 Apr
8-12 wk
21 May
16 Jun
0 wk
11 Jun
3 wk after
African marigold
Tagetes erecta
8 – 22 Apr
28 May
6-8 wk
3 Jun
9 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
28 Mar – 11 Apr
25 May
6-8 wk
23 May
6 Jul
0 wk
26 Jun
26 Jun
5 wk after
Wood sage
Salvia nemorosa
12 – 26 Mar
11 Apr
8-10 wk
21 May
6 Jun
0 wk
11 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
13 Apr – 11 May
3 May
6-10 wk
22 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
21 May
16 Jul
0 wk
14 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
7 May
8-10 wk
3 Jun
2 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
26 Mar – 9 Apr
5 May
6-8 wk
21 May
16 Jun
0 wk
31 May
6 Jun
1 wk after