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Method
Rel. frost
Last spring frost (0°C) 8 May Frost 3 of 4 years · 20 years of data
Frost-free season 132 days 8 May – 17 Sep
Probability that frost is over

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