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Method
Rel. frost
Last spring frost (0°C) 31 May Frost 3 of 4 years · 20 years of data
Frost-free season 89 days 31 May – 28 Aug
Probability that frost is over

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