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