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Method
Rel. frost
Last spring frost (0°C) 14 May Frost 3 of 4 years · 20 years of data
Frost-free season 130 days 14 May – 21 Sep
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)
26 Mar – 9 Apr
17 Jun
5-7 wk
14 May
22 Jul
0 wk
7 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
29 Jun
4-6 wk
14 May
27 Jul
0 wk
7 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
1 – 29 Mar
4 Apr
8-12 wk
24 May
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
12 Jun
5-7 wk
14 May
17 Jul
0 wk
2 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
6 – 13 May
29 May
3-4 wk
3 Jun
19 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
21 May
4-5 wk
19 Jun
5 wk after
19 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
21 Mar
8-12 wk
14 May
16 May
0 wk
24 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
5 Jun
1 wk before
7 May
26 May
1 wk before
Maize
Zea mays
Fleece
26 Apr – 3 May
19 May
3-4 wk
24 May
9 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
28 Jun
3-4 wk
19 May
19 Jul
1 wk after
24 May
9 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
7 Jul
0 wk
2 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
12 Jun
5-7 wk
14 May
17 Jul
0 wk
2 May
7 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
22 May
4-6 wk
19 May
19 Jun
1 wk after
19 May
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
22 Jun
5-7 wk
14 May
27 Jul
0 wk
7 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
22 – 29 May
3 Jun
3-4 wk
19 Jun
24 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
30 May
3-4 wk
19 May
20 Jun
1 wk after
24 May
10 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
24 Jun
4-6 wk
14 May
22 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
11 Jul
3-4 wk
14 May
1 Aug
0 wk
7 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
24 Jun
4-6 wk
14 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Apr
28 May
2-4 wk
2 May
11 Jun
2 wk before
2 May
1 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
5 Jun
1 wk before
7 May
26 May
1 wk before
Spinach
Spinacia oleracea
16 – 23 Apr
26 Jul
3-4 wk
14 May
16 Aug
0 wk
26 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
29 Mar – 12 Apr
28 Apr
6-8 wk
24 May
9 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
5 Jun
2-4 wk
3 Jun
19 Jun
3 wk after
19 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
24 Jun
4-6 wk
14 May
22 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
26 Jun
3-4 wk
14 May
17 Jul
0 wk
7 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
8 – 22 May
12 May
4-6 wk
19 Jun
5 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
22 May
8-10 wk
14 May
17 Jul
0 wk
4 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
7 May
19 Jul
1 wk before
Wild chives
Allium schoenoprasum
19 Mar – 2 Apr
5 Jun
6-8 wk
14 May
17 Jul
0 wk
7 May
7 Jul
1 wk before
Spearmint
Mentha spicata
19 Feb – 19 Mar
22 May
8-12 wk
14 May
17 Jul
0 wk
4 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
14 May
8 Aug
0 wk
24 May
29 Jul
1 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
7 May
8-10 wk
19 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
5 – 19 Mar
12 May
8-10 wk
14 May
7 Jul
0 wk
Oregano
Origanum vulgare
19 Mar – 2 Apr
26 May
6-8 wk
14 May
7 Jul
0 wk
4 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
19 Mar – 2 Apr
26 May
6-8 wk
14 May
7 Jul
0 wk
7 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
23 Mar
10-14 wk
19 May
1 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
22 – 29 May
3-4 wk
19 Jun
5 wk after
Cornflower
Centaurea cyanus
14 May
17 Jul
0 wk
7 May
7 Jul
1 wk before
Statice
Limonium sinuatum
25 Mar – 8 Apr
23 Apr
8-10 wk
3 Jun
18 Jun
3 wk after
Sweet William
Dianthus barbatus
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
19 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
8 – 22 Apr
7 May
6-8 wk
3 Jun
18 Jun
3 wk after
22 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
1 – 15 Apr
10 May
6-8 wk
27 May
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
9 Apr – 7 May
24 May
4-8 wk
4 Jun
21 Jun
3 wk after
4 Jun
11 Jun
3 wk after
Foxglove
Digitalis purpurea
5 – 19 Mar
8-10 wk
14 May
0 wk
24 May
1 wk after
Busy lizzie
Impatiens walleriana
27 Mar – 24 Apr
16 Jun
8-12 wk
19 Jun
11 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
22 Apr – 6 May
29 Apr
4-6 wk
3 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
14 Apr
8-10 wk
19 May
9 Jun
1 wk after
Love in a mist
Nigella damascena
14 May
2 Jul
0 wk
7 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
8 – 22 Apr
27 Apr
6-8 wk
3 Jun
8 Jun
3 wk after
22 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
14 Apr
8-12 wk
19 May
9 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
1 – 29 Mar
23 Mar
8-12 wk
24 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
11 Mar – 8 Apr
21 Apr
8-12 wk
3 Jun
16 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
8 – 22 Apr
5 May
6-8 wk
3 Jun
16 Jun
3 wk after
Corn poppy
Papaver rhoeas
14 May
17 Jul
0 wk
7 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
19 Feb – 19 Mar
12 May
8-12 wk
14 May
7 Jul
0 wk
19 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
10 – 24 Apr
3 May
8-10 wk
19 Jun
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
19 Mar – 9 Apr
2 Jun
5-8 wk
14 May
7 Jul
0 wk
Stock
Matthiola incana
19 Mar – 2 Apr
5 Jun
6-8 wk
14 May
17 Jul
0 wk
24 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
19 Mar – 2 Apr
6 May
6-8 wk
14 May
17 Jun
0 wk
24 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
22 Apr – 6 May
14 May
4-6 wk
3 Jun
11 Jun
3 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Mar
22 May
8-10 wk
14 May
17 Jul
0 wk
19 May
7 Jul
1 wk after
Petunia
Petunia
11 Mar – 8 Apr
23 Apr
8-12 wk
3 Jun
18 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
28 Apr
6-8 wk
19 May
9 Jun
1 wk after
19 Jun
5 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
29 May
4-6 wk
3 Jun
26 Jun
3 wk after
Common morning glory
Ipomoea purpurea
15 – 29 May
19 May
3-5 wk
19 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
24 May
4-6 wk
3 Jun
21 Jun
3 wk after
19 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
27 Mar – 24 Apr
21 May
8-12 wk
19 Jun
16 Jul
5 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
22 Apr
8-12 wk
14 May
17 Jun
0 wk
4 Jun
7 Jun
3 wk after
Yarrow
Achillea millefolium
19 Mar – 2 Apr
6 Apr
6-8 wk
14 May
18 May
0 wk
24 May
1 wk after
Safflower
Carthamus tinctorius
14 May
17 Jun
0 wk
7 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
19 Mar – 2 Apr
26 May
6-8 wk
14 May
7 Jul
0 wk
5 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
2 – 16 Apr
9 Jun
4-6 wk
14 May
7 Jul
0 wk
24 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
11 – 25 Mar
23 Mar
10-12 wk
3 Jun
3 wk after
Sunflower
Helianthus annuus
6 – 13 May
31 May
3-4 wk
3 Jun
21 Jun
3 wk after
4 Jun
11 Jun
3 wk after
China aster
Callistephus chinensis
8 – 22 Apr
20 May
6-8 wk
3 Jun
1 Jul
3 wk after
19 Jun
21 Jun
5 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
17 May
6-8 wk
24 May
28 Jun
1 wk after
19 Jun
5 wk after
Hollyhock
Alcea rosea
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
24 May
1 wk after
Alpine delphinium
Delphinium elatum
19 Feb – 19 Mar
22 Apr
8-12 wk
14 May
17 Jun
0 wk
4 Jun
7 Jun
3 wk after
African marigold
Tagetes erecta
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
10 May
6-8 wk
19 May
21 Jun
1 wk after
19 Jun
5 wk after
Wood sage
Salvia nemorosa
5 – 19 Mar
12 Apr
8-10 wk
14 May
7 Jun
0 wk
4 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
10 Apr – 8 May
28 Apr
6-10 wk
19 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
14 May
17 Jul
0 wk
7 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
23 Apr
8-10 wk
3 Jun
18 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
19 Mar – 2 Apr
6 May
6-8 wk
14 May
17 Jun
0 wk
24 May
7 Jun
1 wk after