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Method
Rel. frost
Last spring frost (0°C) 31 May Frost 1 of 10 years · 20 years of data
Frost-free season 123 days 31 May – 1 Oct
Probability that frost is over

90% = 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)
12 – 26 Apr
9 Jun
5-7 wk
31 May
14 Jul
0 wk
1 Jun
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
19 Apr – 3 May
21 Jun
4-6 wk
31 May
19 Jul
0 wk
1 Jun
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
12 – 26 Apr
4 Jun
5-7 wk
31 May
9 Jul
0 wk
31 May
29 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
9 – 16 May
3-4 wk
6 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
28 May – 4 Jun
1 Jun
4-5 wk
2 Jul
5 wk after
13 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Mar – 5 Apr
22 Mar
8-12 wk
31 May
0 wk
13 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
28 May
9 Jun
0 wk
28 May
30 May
0 wk
Maize
Zea mays
Greenhouse
3 – 10 May
3-4 wk
31 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 May
28 Jun
3-4 wk
2 Jun
19 Jul
0 wk
13 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
31 May
29 Jun
0 wk
31 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
12 – 26 Apr
4 Jun
5-7 wk
31 May
9 Jul
0 wk
31 May
29 Jun
0 wk
Potato
Solanum tuberosum
Fleece
20 Apr – 4 May
29 May
4-6 wk
1 Jun
26 Jun
0 wk
1 Jun
16 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
12 – 26 Apr
14 Jun
5-7 wk
31 May
19 Jul
0 wk
1 Jun
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
9 – 16 May
30 May
3-4 wk
6 Jun
20 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 May
24 May
3-4 wk
2 Jun
14 Jun
0 wk
13 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Apr – 3 May
16 Jun
4-6 wk
31 May
14 Jul
0 wk
Lettuce
Lactuca sativa
3 – 10 May
3 Jul
3-4 wk
31 May
24 Jul
0 wk
1 Jun
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
19 Apr – 3 May
16 Jun
4-6 wk
31 May
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 May
26 May
2-4 wk
31 May
9 Jun
0 wk
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
28 May
9 Jun
0 wk
28 May
30 May
0 wk
Spinach
Spinacia oleracea
3 – 10 May
18 Jul
3-4 wk
31 May
8 Aug
0 wk
28 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
5 – 19 Apr
6 Apr
6-8 wk
31 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
9 – 23 May
14 May
2-4 wk
6 Jun
1 wk after
25 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Apr – 3 May
16 Jun
4-6 wk
31 May
14 Jul
0 wk
Garden pea
Pisum sativum
3 – 10 May
18 Jun
3-4 wk
31 May
9 Jul
0 wk
1 Jun
29 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
25 Apr – 9 May
8 May
4-6 wk
6 Jun
1 wk after
Lemon balm
Melissa officinalis
22 Mar – 5 Apr
14 May
8-10 wk
31 May
9 Jul
0 wk
25 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
1 Jun
19 Jul
0 wk
Wild chives
Allium schoenoprasum
5 – 19 Apr
28 May
6-8 wk
31 May
9 Jul
0 wk
1 Jun
29 Jun
0 wk
Spearmint
Mentha spicata
8 Mar – 5 Apr
14 May
8-12 wk
31 May
9 Jul
0 wk
25 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
31 May
8 Aug
0 wk
13 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
24 Mar – 7 Apr
29 Apr
8-10 wk
2 Jun
24 Jun
0 wk
Common thyme
Thymus vulgaris
22 Mar – 5 Apr
4 May
8-10 wk
31 May
29 Jun
0 wk
Oregano
Origanum vulgare
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
0 wk
25 Jun
4 wk after
Parsley
Petroselinum crispum
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
0 wk
1 Jun
19 Jun
0 wk
Rosemary
Salvia rosmarinus
24 Feb – 24 Mar
31 Mar
10-14 wk
2 Jun
9 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
Greenhouse
9 – 16 May
15 May
3-4 wk
6 Jun
1 wk after
Cornflower
Centaurea cyanus
31 May
9 Jul
0 wk
1 Jun
29 Jun
0 wk
Statice
Limonium sinuatum
Fleece
28 Mar – 11 Apr
9 Apr
8-10 wk
6 Jun
1 wk after
Sweet William
Dianthus barbatus
5 – 19 Apr
6-8 wk
31 May
0 wk
10 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
11 – 25 Apr
23 Apr
6-8 wk
6 Jun
1 wk after
20 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
7 – 21 Apr
3 May
6-8 wk
2 Jun
14 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
11 Apr – 9 May
28 May
4-8 wk
6 Jun
25 Jun
1 wk after
6 Jun
15 Jun
1 wk after
Foxglove
Digitalis purpurea
22 Mar – 5 Apr
8-10 wk
31 May
0 wk
13 Jun
2 wk after
Busy lizzie
Impatiens walleriana
9 Apr – 7 May
8 May
8-12 wk
2 Jul
3 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
11 – 25 Apr
3 May
6-8 wk
6 Jun
14 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
2 – 16 May
4-6 wk
13 Jun
2 wk after
Chinese lantern
Physalis alkekengi
24 Mar – 7 Apr
14 Apr
8-10 wk
2 Jun
9 Jun
0 wk
Love in a mist
Nigella damascena
31 May
24 Jun
0 wk
1 Jun
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
11 – 25 Apr
13 Apr
6-8 wk
6 Jun
1 wk after
20 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
14 Mar – 11 Apr
15 Mar
8-12 wk
6 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
14 Mar – 11 Apr
31 Mar
8-12 wk
6 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
11 – 25 Apr
14 Apr
6-8 wk
6 Jun
1 wk after
Corn poppy
Papaver rhoeas
31 May
9 Jul
0 wk
1 Jun
29 Jun
0 wk
Snapdragon
Antirrhinum majus
8 Mar – 5 Apr
4 May
8-12 wk
31 May
29 Jun
0 wk
10 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
4 – 18 Apr
19 Apr
8-10 wk
13 Jun
14 Jun
2 wk after
Sweet pea
Lathyrus odoratus
5 – 26 Apr
25 May
5-8 wk
31 May
29 Jun
0 wk
Stock
Matthiola incana
5 – 19 Apr
28 May
6-8 wk
31 May
9 Jul
0 wk
13 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
0 wk
13 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
1 wk after
Garden pansy
Viola × wittrockiana
22 Mar – 5 Apr
14 May
8-10 wk
31 May
9 Jul
0 wk
10 Jun
29 Jun
1 wk after
Petunia
Petunia
Fleece
14 Mar – 11 Apr
9 Apr
8-12 wk
6 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
0 wk
13 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
25 Apr – 9 May
8 May
4-6 wk
6 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
2 – 16 May
15 May
3-5 wk
6 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
1 wk after
25 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
21 Mar – 18 Apr
30 Apr
8-12 wk
13 Jun
25 Jun
2 wk after
Bee balm
Monarda didyma
8 Mar – 5 Apr
14 Apr
8-12 wk
31 May
9 Jun
0 wk
25 Jun
4 wk after
Yarrow
Achillea millefolium
5 – 19 Apr
6-8 wk
31 May
0 wk
13 Jun
2 wk after
Safflower
Carthamus tinctorius
31 May
9 Jun
0 wk
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
0 wk
15 May
19 Jun
2 wk before
Bishop's flower
Ammi majus
19 Apr – 3 May
1 Jun
4-6 wk
31 May
29 Jun
0 wk
13 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
14 – 28 Mar
16 Mar
10-12 wk
6 Jun
1 wk after
Sunflower
Helianthus annuus
16 – 23 May
8 Jun
3-4 wk
13 Jun
29 Jun
2 wk after
25 Jun
4 wk after
China aster
Callistephus chinensis
18 Apr – 2 May
28 May
6-8 wk
13 Jun
9 Jul
2 wk after
13 Jul
6 wk after
Annual phlox
Phlox drummondii
11 – 25 Apr
16 Apr
6-8 wk
6 Jun
1 wk after
13 Jul
6 wk after
Hollyhock
Alcea rosea
5 – 19 Apr
6-8 wk
31 May
0 wk
13 Jun
2 wk after
Alpine delphinium
Delphinium elatum
8 Mar – 5 Apr
14 Apr
8-12 wk
31 May
9 Jun
0 wk
25 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
11 – 25 Apr
3 May
6-8 wk
6 Jun
14 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Apr
18 May
6-8 wk
2 Jun
29 Jun
0 wk
13 Jul
6 wk after
Wood sage
Salvia nemorosa
22 Mar – 5 Apr
4 Apr
8-10 wk
31 May
0 wk
25 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
28 Mar – 25 Apr
24 Apr
6-10 wk
6 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
31 May
9 Jul
0 wk
1 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
4 – 18 Apr
4 May
8-10 wk
13 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
0 wk
13 Jun
2 wk after