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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 4 years · 20 years of data
Frost-free season 138 days 24 May – 9 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)
5 – 19 Apr
13 Jun
5-7 wk
24 May
18 Jul
0 wk
25 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
25 Jun
4-6 wk
24 May
23 Jul
0 wk
25 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Fleece
14 Mar – 11 Apr
7 Apr
8-12 wk
6 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
8 Jun
5-7 wk
24 May
13 Jul
0 wk
24 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
28 May – 4 Jun
1 Jun
3-4 wk
25 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 May
5 Jun
4-5 wk
25 Jun
3 Jul
5 wk after
6 Jul
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
29 Mar
8-12 wk
24 May
24 May
0 wk
6 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
13 Jun
0 wk
25 May
3 Jun
0 wk
Maize
Zea mays
9 – 16 May
22 May
3-4 wk
6 Jun
12 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
2 Jul
3-4 wk
26 May
23 Jul
0 wk
6 Jun
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
3 Jul
0 wk
24 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
8 Jun
5-7 wk
24 May
13 Jul
0 wk
24 May
3 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
1 Jun
4-6 wk
3 Jun
29 Jun
1 wk after
3 Jun
19 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
18 Jun
5-7 wk
24 May
23 Jul
0 wk
25 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
28 May – 4 Jun
18 Jun
3-4 wk
25 Jun
9 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
16 Jun
3-4 wk
26 May
7 Jul
0 wk
6 Jun
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
7 Jul
3-4 wk
24 May
28 Jul
0 wk
25 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
30 May
2-4 wk
24 May
13 Jun
0 wk
24 May
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
13 Jun
0 wk
25 May
3 Jun
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
22 Jul
3-4 wk
24 May
12 Aug
0 wk
21 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
11 – 25 Apr
1 May
6-8 wk
6 Jun
12 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
9 – 23 May
20 Jun
2-4 wk
6 Jun
4 Jul
2 wk after
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
22 Jun
3-4 wk
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
14 – 28 May
27 May
4-6 wk
25 Jun
5 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
18 May
8-10 wk
24 May
13 Jul
0 wk
18 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
25 May
23 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
1 Jun
6-8 wk
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
18 May
8-12 wk
24 May
13 Jul
0 wk
18 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
12 Aug
0 wk
6 Jun
2 Aug
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
3 May
8-10 wk
26 May
28 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
8 May
8-10 wk
24 May
3 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
18 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
25 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
4 Apr
10-14 wk
26 May
13 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
28 May – 4 Jun
3 Jun
3-4 wk
25 Jun
5 wk after
Cornflower
Centaurea cyanus
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Statice
Limonium sinuatum
28 Mar – 11 Apr
8 May
8-10 wk
6 Jun
3 Jul
2 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
22 May
6-8 wk
6 Jun
3 Jul
2 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
22 May
6-8 wk
4 Jun
3 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
5 Jun
4-8 wk
18 Jun
3 Jul
4 wk after
18 Jun
23 Jun
4 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
6 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
26 Jun
8-12 wk
25 Jun
21 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
1 Jun
6-8 wk
6 Jun
13 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
25 Apr – 9 May
9 May
4-6 wk
6 Jun
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
18 Apr
8-10 wk
26 May
13 Jun
0 wk
Love in a mist
Nigella damascena
24 May
28 Jun
0 wk
25 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
11 – 25 Apr
12 May
6-8 wk
6 Jun
23 Jun
2 wk after
30 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
18 Apr
8-12 wk
26 May
13 Jun
0 wk
Cardoon
Cynara cardunculus
14 Mar – 11 Apr
19 Mar
8-12 wk
6 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
2 – 30 Apr
19 Apr
8-12 wk
25 Jun
5 wk after
Globe amaranth
Gomphrena globosa
30 Apr – 14 May
3 May
6-8 wk
25 Jun
5 wk after
Corn poppy
Papaver rhoeas
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
8 May
8-12 wk
24 May
3 Jul
0 wk
3 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
18 May
8-10 wk
25 Jun
13 Jul
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
29 May
5-8 wk
24 May
3 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
1 Jun
6-8 wk
24 May
13 Jul
0 wk
6 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
2 May
6-8 wk
24 May
13 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
14 – 28 May
4-6 wk
25 Jun
5 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
18 May
8-10 wk
24 May
13 Jul
0 wk
3 Jun
3 Jul
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
8 May
8-12 wk
6 Jun
3 Jul
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
2 May
6-8 wk
26 May
13 Jun
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
8 Jun
4-6 wk
6 Jun
6 Jul
2 wk after
Common morning glory
Ipomoea purpurea
21 May – 4 Jun
3 Jun
3-5 wk
25 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
5 Jun
4-6 wk
6 Jun
3 Jul
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
19 May
8-12 wk
16 Jul
8 wk after
Bee balm
Monarda didyma
1 – 29 Mar
18 Apr
8-12 wk
24 May
13 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
2 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
13 Jun
0 wk
25 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
8 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
5 Jun
4-6 wk
24 May
3 Jul
0 wk
6 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
2 – 16 Apr
10-12 wk
25 Jun
5 wk after
Sunflower
Helianthus annuus
9 – 16 May
12 Jun
3-4 wk
6 Jun
3 Jul
2 wk after
18 Jun
23 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
1 Jun
6-8 wk
6 Jun
13 Jul
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
1 Jun
6-8 wk
30 May
13 Jul
1 wk after
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
18 Apr
8-12 wk
24 May
13 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
1 Jun
6-8 wk
6 Jun
13 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
22 May
6-8 wk
26 May
3 Jul
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
8 Apr
8-10 wk
24 May
3 Jun
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
16 Apr – 14 May
13 May
6-10 wk
25 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
8 May
8-10 wk
6 Jun
3 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
2 May
6-8 wk
24 May
13 Jun
0 wk
6 Jun
2 wk after