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