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