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Method
Rel. frost
Last spring frost (0°C) 28 May Frost 1 of 4 years · 20 years of data
Frost-free season 139 days 28 May – 14 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)
9 – 23 Apr
21 Jun
5-7 wk
28 May
26 Jul
0 wk
22 May
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Apr
3 Jul
4-6 wk
28 May
31 Jul
0 wk
22 May
21 Jul
1 wk before
Chili pepper
Capsicum annuum
6 Apr – 4 May
13 Apr
8-12 wk
29 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Apr
16 Jun
5-7 wk
28 May
21 Jul
0 wk
15 May
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
1 – 8 Jun
22 Jun
3-4 wk
29 Jun
13 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
13 Jun
4-5 wk
29 Jun
11 Jul
5 wk after
8 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
2 – 9 Jul
3-4 wk
30 Jul
9 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Mar – 2 Apr
6 Apr
8-12 wk
28 May
1 Jun
0 wk
10 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
21 Jun
1 wk before
22 May
11 Jun
1 wk before
Maize
Zea mays
13 – 20 May
12 Jun
3-4 wk
10 Jun
3 Jul
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
10 Jul
3-4 wk
30 May
31 Jul
0 wk
10 Jun
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 May
11 Jul
0 wk
15 May
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Apr
16 Jun
5-7 wk
28 May
21 Jul
0 wk
15 May
11 Jul
2 wk before
Potato
Solanum tuberosum
21 Apr – 5 May
13 Jun
4-6 wk
2 Jun
11 Jul
1 wk after
2 Jun
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Apr
26 Jun
5-7 wk
28 May
31 Jul
0 wk
22 May
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
1 – 8 Jun
4 Jul
3-4 wk
29 Jun
25 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 May
1 Jul
3-4 wk
30 May
22 Jul
0 wk
10 Jun
12 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Apr
28 Jun
4-6 wk
28 May
26 Jul
0 wk
Lettuce
Lactuca sativa
30 Apr – 7 May
15 Jul
3-4 wk
28 May
5 Aug
0 wk
22 May
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Apr
28 Jun
4-6 wk
28 May
26 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Apr – 1 May
7 Jun
2-4 wk
15 May
21 Jun
2 wk before
15 May
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
21 Jun
1 wk before
22 May
11 Jun
1 wk before
Spinach
Spinacia oleracea
30 Apr – 7 May
30 Jul
3-4 wk
28 May
20 Aug
0 wk
8 May
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
11 wk after
Garden tomato
Solanum lycopersicum
15 – 29 Apr
22 May
6-8 wk
10 Jun
3 Jul
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 May
6 Jul
2-4 wk
10 Jun
20 Jul
2 wk after
8 Jul
10 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Apr
28 Jun
4-6 wk
28 May
26 Jul
0 wk
Garden pea
Pisum sativum
30 Apr – 7 May
30 Jun
3-4 wk
28 May
21 Jul
0 wk
22 May
11 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
18 May – 1 Jun
12 Jun
4-6 wk
29 Jun
10 Jul
5 wk after
Lemon balm
Melissa officinalis
19 Mar – 2 Apr
26 May
8-10 wk
28 May
21 Jul
0 wk
23 Jun
11 Jul
4 wk after
Dill
Anethum graveolens
22 May
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
2 – 16 Apr
9 Jun
6-8 wk
28 May
21 Jul
0 wk
22 May
11 Jul
1 wk before
Spearmint
Mentha spicata
5 Mar – 2 Apr
26 May
8-12 wk
28 May
21 Jul
0 wk
23 Jun
11 Jul
4 wk after
Coriander
Coriandrum sativum
28 May
20 Aug
0 wk
10 Jun
10 Aug
2 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
11 May
8-10 wk
30 May
6 Jul
0 wk
Common thyme
Thymus vulgaris
19 Mar – 2 Apr
16 May
8-10 wk
28 May
11 Jul
0 wk
Oregano
Origanum vulgare
2 – 16 Apr
30 May
6-8 wk
28 May
11 Jul
0 wk
23 Jun
1 Jul
4 wk after
Parsley
Petroselinum crispum
2 – 16 Apr
30 May
6-8 wk
28 May
11 Jul
0 wk
22 May
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
12 Apr
10-14 wk
30 May
21 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
1 – 8 Jun
19 Jun
3-4 wk
29 Jun
10 Jul
5 wk after
Cornflower
Centaurea cyanus
28 May
21 Jul
0 wk
22 May
11 Jul
1 wk before
Statice
Limonium sinuatum
1 – 15 Apr
16 May
8-10 wk
10 Jun
11 Jul
2 wk after
Sweet William
Dianthus barbatus
2 – 16 Apr
6-8 wk
28 May
0 wk
2 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Apr
30 May
6-8 wk
10 Jun
11 Jul
2 wk after
10 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
13 Jun
4-8 wk
23 Jun
11 Jul
4 wk after
23 Jun
1 Jul
4 wk after
Foxglove
Digitalis purpurea
19 Mar – 2 Apr
8-10 wk
28 May
0 wk
10 Jun
2 wk after
Busy lizzie
Impatiens walleriana
6 Apr – 4 May
6 Jul
8-12 wk
29 Jun
31 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Apr
9 Jun
6-8 wk
10 Jun
21 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Fleece
18 May – 1 Jun
4-6 wk
29 Jun
5 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
26 Apr
8-10 wk
30 May
21 Jun
0 wk
Love in a mist
Nigella damascena
28 May
6 Jul
0 wk
22 May
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
2 wk after
10 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
26 Apr
8-12 wk
30 May
21 Jun
0 wk
Cardoon
Cynara cardunculus
18 Mar – 15 Apr
27 Mar
8-12 wk
10 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
6 Apr – 4 May
5 May
8-12 wk
29 Jun
30 Jun
5 wk after
Globe amaranth
Gomphrena globosa
4 – 18 May
19 May
6-8 wk
29 Jun
30 Jun
5 wk after
Corn poppy
Papaver rhoeas
28 May
21 Jul
0 wk
22 May
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
5 Mar – 2 Apr
16 May
8-12 wk
28 May
11 Jul
0 wk
2 Jun
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
20 Apr – 4 May
26 May
8-10 wk
29 Jun
21 Jul
5 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Apr
6 Jun
5-8 wk
28 May
11 Jul
0 wk
Stock
Matthiola incana
2 – 16 Apr
9 Jun
6-8 wk
28 May
21 Jul
0 wk
10 Jun
11 Jul
2 wk after
Wormwood
Artemisia absinthium
2 – 16 Apr
10 May
6-8 wk
28 May
21 Jun
0 wk
10 Jun
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
18 May – 1 Jun
28 May
4-6 wk
29 Jun
5 wk after
Garden pansy
Viola × wittrockiana
19 Mar – 2 Apr
26 May
8-10 wk
28 May
21 Jul
0 wk
2 Jun
11 Jul
1 wk after
Petunia
Petunia
18 Mar – 15 Apr
16 May
8-12 wk
10 Jun
11 Jul
2 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
10 May
6-8 wk
30 May
21 Jun
0 wk
8 Jul
6 wk after
Common zinnia
Zinnia elegans
29 Apr – 13 May
18 Jun
4-6 wk
10 Jun
16 Jul
2 wk after
Common morning glory
Ipomoea purpurea
25 May – 8 Jun
19 Jun
3-5 wk
29 Jun
10 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
29 Apr – 13 May
13 Jun
4-6 wk
10 Jun
11 Jul
2 wk after
8 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
27 Apr – 25 May
4 Jun
8-12 wk
20 Jul
30 Jul
8 wk after
Bee balm
Monarda didyma
5 Mar – 2 Apr
26 Apr
8-12 wk
28 May
21 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
2 – 16 Apr
10 Apr
6-8 wk
28 May
0 wk
10 Jun
2 wk after
Safflower
Carthamus tinctorius
28 May
21 Jun
0 wk
22 May
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Apr
30 May
6-8 wk
28 May
11 Jul
0 wk
12 Apr
1 Jul
7 wk before
Bishop's flower
Ammi majus
16 – 30 Apr
13 Jun
4-6 wk
28 May
11 Jul
0 wk
10 Jun
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
6 – 20 Apr
7 Apr
10-12 wk
29 Jun
5 wk after
Sunflower
Helianthus annuus
13 – 20 May
20 Jun
3-4 wk
10 Jun
11 Jul
2 wk after
23 Jun
1 Jul
4 wk after
China aster
Callistephus chinensis
15 – 29 Apr
9 Jun
6-8 wk
10 Jun
21 Jul
2 wk after
8 Jul
11 Jul
6 wk after
Annual phlox
Phlox drummondii
8 – 22 Apr
9 Jun
6-8 wk
3 Jun
21 Jul
1 wk after
8 Jul
11 Jul
6 wk after
Hollyhock
Alcea rosea
2 – 16 Apr
6-8 wk
28 May
0 wk
10 Jun
2 wk after
Alpine delphinium
Delphinium elatum
5 Mar – 2 Apr
26 Apr
8-12 wk
28 May
21 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
15 – 29 Apr
9 Jun
6-8 wk
10 Jun
21 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
30 May
6-8 wk
30 May
11 Jul
0 wk
8 Jul
6 wk after
Wood sage
Salvia nemorosa
19 Mar – 2 Apr
16 Apr
8-10 wk
28 May
11 Jun
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
20 Apr – 18 May
29 May
6-10 wk
29 Jun
10 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
28 May
21 Jul
0 wk
22 May
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
1 – 15 Apr
16 May
8-10 wk
10 Jun
11 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Apr
10 May
6-8 wk
28 May
21 Jun
0 wk
10 Jun
11 Jun
2 wk after