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