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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 3 of 4 years · 20 years of data
Frost-free season 106 days 26 May – 9 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)
7 – 21 Apr
15 Jun
5-7 wk
26 May
20 Jul
0 wk
30 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
27 Jun
4-6 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
18 Mar – 15 Apr
31 Mar
8-12 wk
10 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
25 May – 1 Jun
25 May
3-4 wk
22 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
Fleece
18 – 25 May
27 May
4-5 wk
22 Jun
24 Jun
4 wk after
30 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
19 Mar
8-12 wk
26 May
0 wk
16 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
3 Jun
1 wk after
30 May
1 wk after
Maize
Zea mays
Fleece
13 – 20 May
15 May
3-4 wk
10 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
23 Jun
3-4 wk
3 Jun
14 Jul
1 wk after
16 Jun
4 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
3 Jul
0 wk
26 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
16 May
4-6 wk
11 Jun
13 Jun
2 wk after
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
18 Jun
5-7 wk
26 May
23 Jul
0 wk
30 May
13 Jul
1 wk after
Pumpkin
Cucurbita pepo
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
21 May
3-4 wk
3 Jun
11 Jun
1 wk after
16 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
7 Jul
3-4 wk
26 May
28 Jul
0 wk
30 May
18 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
22 May
2-4 wk
26 May
5 Jun
0 wk
26 May
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
3 Jun
1 wk after
30 May
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
24 Jul
3-4 wk
26 May
14 Aug
0 wk
22 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
15 – 29 Apr
24 Apr
6-8 wk
10 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
25 May – 8 Jun
1 Jun
2-4 wk
22 Jun
4 wk after
14 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
22 Jun
3-4 wk
26 May
13 Jul
0 wk
30 May
3 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
Fleece
11 – 25 May
22 May
4-6 wk
22 Jun
4 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
18 May
8-10 wk
26 May
13 Jul
0 wk
30 Jun
3 Jul
5 wk after
Dill
Anethum graveolens
30 May
14 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
20 May
8-12 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
3 Aug
0 wk
16 Jun
24 Jul
3 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
5 May
8-10 wk
3 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
17 – 31 Mar
10 May
8-10 wk
26 May
5 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
24 Mar
10-14 wk
3 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
Fleece
25 May – 1 Jun
29 May
3-4 wk
22 Jun
4 wk after
Cornflower
Centaurea cyanus
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Statice
Limonium sinuatum
13 – 27 Apr
19 Apr
8-10 wk
22 Jun
4 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
27 Apr – 11 May
3 May
6-8 wk
22 Jun
4 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
7 May
6-8 wk
14 Jun
18 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 May – 2 Jun
21 May
4-8 wk
30 Jun
5 wk after
30 Jun
5 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
15 Apr – 13 May
9 Jun
8-12 wk
8 Jul
4 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
27 Apr – 11 May
13 May
6-8 wk
22 Jun
24 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
4 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
9 Apr
8-10 wk
3 Jun
4 Jun
1 wk after
Love in a mist
Nigella damascena
26 May
28 Jun
0 wk
30 May
18 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Apr
2 May
6-8 wk
10 Jun
13 Jun
2 wk after
24 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
9 Apr
8-12 wk
3 Jun
4 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
4 Mar – 1 Apr
21 Mar
8-12 wk
27 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
30 Mar – 27 Apr
14 Apr
8-12 wk
22 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
27 Apr – 11 May
28 Apr
6-8 wk
22 Jun
4 wk after
Corn poppy
Papaver rhoeas
26 May
13 Jul
0 wk
30 May
3 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
8 May
8-12 wk
26 May
3 Jul
0 wk
11 Jun
23 Jun
2 wk after
Flossflower
Ageratum houstonianum
29 Apr – 13 May
29 Apr
8-10 wk
8 Jul
6 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
31 May
5-8 wk
26 May
5 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
1 Jun
6-8 wk
26 May
13 Jul
0 wk
16 Jun
3 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Apr – 13 May
16 May
4-6 wk
10 Jun
13 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Petunia
Petunia
30 Mar – 27 Apr
19 Apr
8-12 wk
22 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
23 Apr
6-8 wk
3 Jun
4 Jun
1 wk after
14 Jul
7 wk after
Common zinnia
Zinnia elegans
11 – 25 May
22 May
4-6 wk
22 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
18 May – 1 Jun
29 May
3-5 wk
22 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 May
21 May
4-6 wk
22 Jun
4 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
15 Apr – 13 May
14 May
8-12 wk
8 Jul
9 Jul
6 wk after
Bee balm
Monarda didyma
3 – 31 Mar
18 Apr
8-12 wk
26 May
13 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
4 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
15 Jun
0 wk
30 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
8 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
5 Jun
4-6 wk
26 May
3 Jul
0 wk
16 Jun
23 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Mar – 1 Apr
27 Mar
10-12 wk
10 Jun
2 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
1 Jun
3-4 wk
22 Jun
22 Jun
4 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
21 May
6-8 wk
22 Jun
2 Jul
4 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
13 May
6-8 wk
10 Jun
24 Jun
2 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
18 Apr
8-12 wk
26 May
13 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
27 Apr – 11 May
13 May
6-8 wk
22 Jun
24 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
11 May
6-8 wk
3 Jun
22 Jun
1 wk after
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
8 Apr
8-10 wk
26 May
3 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
13 Apr – 11 May
8 May
6-10 wk
22 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
26 May
8 Jul
0 wk
30 May
28 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Apr
15 Apr
8-10 wk
22 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after