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Method
Rel. frost
Last spring frost (0°C) 16 May Frost 3 of 4 years · 20 years of data
Frost-free season 113 days 16 May – 6 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)
28 Mar – 11 Apr
16 Jun
5-7 wk
16 May
21 Jul
0 wk
9 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
4 – 18 Apr
28 Jun
4-6 wk
16 May
26 Jul
0 wk
9 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
4 Mar – 1 Apr
2 Apr
8-12 wk
27 May
28 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
28 Mar – 11 Apr
11 Jun
5-7 wk
16 May
16 Jul
0 wk
4 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
7 – 14 May
27 May
3-4 wk
4 Jun
17 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
17 – 24 May
20 May
4-5 wk
21 Jun
5 wk after
21 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
21 Feb – 21 Mar
19 Mar
8-12 wk
16 May
0 wk
26 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 May
3 Jun
1 wk before
9 May
24 May
1 wk before
Maize
Zea mays
Fleece
29 Apr – 6 May
17 May
3-4 wk
27 May
7 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
28 Jun
3-4 wk
22 May
19 Jul
1 wk after
26 May
9 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
16 May
6 Jul
0 wk
4 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
28 Mar – 11 Apr
11 Jun
5-7 wk
16 May
16 Jul
0 wk
4 May
6 Jul
2 wk before
Potato
Solanum tuberosum
9 – 23 Apr
17 May
4-6 wk
21 May
14 Jun
1 wk after
21 May
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
28 Mar – 11 Apr
21 Jun
5-7 wk
16 May
26 Jul
0 wk
9 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
24 – 31 May
1 Jun
3-4 wk
21 Jun
22 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
25 May
3-4 wk
22 May
15 Jun
1 wk after
26 May
5 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
4 – 18 Apr
23 Jun
4-6 wk
16 May
21 Jul
0 wk
Lettuce
Lactuca sativa
18 – 25 Apr
10 Jul
3-4 wk
16 May
31 Jul
0 wk
9 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Apr
23 Jun
4-6 wk
16 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 Apr
22 May
2-4 wk
4 May
5 Jun
2 wk before
4 May
26 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 May
3 Jun
1 wk before
9 May
24 May
1 wk before
Spinach
Spinacia oleracea
18 – 25 Apr
25 Jul
3-4 wk
16 May
15 Aug
0 wk
28 Apr
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
12 – 26 Jun
4-6 wk
24 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
1 – 15 Apr
26 Apr
6-8 wk
27 May
7 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
7 – 21 May
3 Jun
2-4 wk
4 Jun
17 Jun
3 wk after
21 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
4 – 18 Apr
23 Jun
4-6 wk
16 May
21 Jul
0 wk
Garden pea
Pisum sativum
18 – 25 Apr
25 Jun
3-4 wk
16 May
16 Jul
0 wk
9 May
6 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
10 – 24 May
10 May
4-6 wk
21 Jun
5 wk after
Lemon balm
Melissa officinalis
7 – 21 Mar
21 May
8-10 wk
16 May
16 Jul
0 wk
6 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
9 May
19 Jul
1 wk before
Wild chives
Allium schoenoprasum
21 Mar – 4 Apr
4 Jun
6-8 wk
16 May
16 Jul
0 wk
9 May
6 Jul
1 wk before
Spearmint
Mentha spicata
21 Feb – 21 Mar
21 May
8-12 wk
16 May
16 Jul
0 wk
6 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
16 May
8 Aug
0 wk
26 May
29 Jul
1 wk after
Garden sage
Salvia officinalis
13 – 27 Mar
6 May
8-10 wk
22 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
7 – 21 Mar
11 May
8-10 wk
16 May
6 Jul
0 wk
Oregano
Origanum vulgare
21 Mar – 4 Apr
25 May
6-8 wk
16 May
6 Jul
0 wk
6 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
21 Mar – 4 Apr
25 May
6-8 wk
16 May
6 Jul
0 wk
9 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
13 Feb – 13 Mar
23 Mar
10-14 wk
22 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
24 – 31 May
3-4 wk
21 Jun
5 wk after
Cornflower
Centaurea cyanus
16 May
16 Jul
0 wk
9 May
6 Jul
1 wk before
Statice
Limonium sinuatum
26 Mar – 9 Apr
22 Apr
8-10 wk
4 Jun
17 Jun
3 wk after
Sweet William
Dianthus barbatus
21 Mar – 4 Apr
6-8 wk
16 May
0 wk
21 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
9 – 23 Apr
6 May
6-8 wk
4 Jun
17 Jun
3 wk after
24 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Apr
9 May
6-8 wk
30 May
20 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
11 Apr – 9 May
23 May
4-8 wk
6 Jun
20 Jun
3 wk after
6 Jun
10 Jun
3 wk after
Foxglove
Digitalis purpurea
7 – 21 Mar
8-10 wk
16 May
0 wk
26 May
1 wk after
Busy lizzie
Impatiens walleriana
29 Mar – 26 Apr
14 Jun
8-12 wk
21 Jun
9 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
9 – 23 Apr
16 May
6-8 wk
4 Jun
27 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
23 Apr – 7 May
27 Apr
4-6 wk
4 Jun
3 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Mar
14 Apr
8-10 wk
22 May
9 Jun
1 wk after
Love in a mist
Nigella damascena
16 May
1 Jul
0 wk
9 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
9 – 23 Apr
26 Apr
6-8 wk
4 Jun
7 Jun
3 wk after
24 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
27 Feb – 27 Mar
14 Apr
8-12 wk
22 May
9 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
4 Mar – 1 Apr
22 Mar
8-12 wk
27 May
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
12 Mar – 9 Apr
19 Apr
8-12 wk
4 Jun
14 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
3 wk after
Corn poppy
Papaver rhoeas
16 May
16 Jul
0 wk
9 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
21 Feb – 21 Mar
11 May
8-12 wk
16 May
6 Jul
0 wk
21 May
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
12 – 26 Apr
2 May
8-10 wk
21 Jun
27 Jun
5 wk after
Sweet pea
Lathyrus odoratus
21 Mar – 11 Apr
1 Jun
5-8 wk
16 May
6 Jul
0 wk
Stock
Matthiola incana
21 Mar – 4 Apr
4 Jun
6-8 wk
16 May
16 Jul
0 wk
26 May
6 Jul
1 wk after
Wormwood
Artemisia absinthium
21 Mar – 4 Apr
5 May
6-8 wk
16 May
16 Jun
0 wk
26 May
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
23 Apr – 7 May
12 May
4-6 wk
4 Jun
9 Jun
3 wk after
Garden pansy
Viola × wittrockiana
7 – 21 Mar
21 May
8-10 wk
16 May
16 Jul
0 wk
21 May
6 Jul
1 wk after
Petunia
Petunia
12 Mar – 9 Apr
22 Apr
8-12 wk
4 Jun
17 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Mar – 10 Apr
28 Apr
6-8 wk
22 May
9 Jun
1 wk after
21 Jun
5 wk after
Common zinnia
Zinnia elegans
23 Apr – 7 May
27 May
4-6 wk
4 Jun
24 Jun
3 wk after
Common morning glory
Ipomoea purpurea
17 – 31 May
17 May
3-5 wk
21 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
23 Apr – 7 May
23 May
4-6 wk
4 Jun
20 Jun
3 wk after
21 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
29 Mar – 26 Apr
19 May
8-12 wk
21 Jun
14 Jul
5 wk after
Bee balm
Monarda didyma
21 Feb – 21 Mar
21 Apr
8-12 wk
16 May
16 Jun
0 wk
6 Jun
6 Jun
3 wk after
Yarrow
Achillea millefolium
21 Mar – 4 Apr
5 Apr
6-8 wk
16 May
17 May
0 wk
26 May
1 wk after
Safflower
Carthamus tinctorius
16 May
16 Jun
0 wk
9 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
21 Mar – 4 Apr
25 May
6-8 wk
16 May
6 Jul
0 wk
7 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
4 – 18 Apr
8 Jun
4-6 wk
16 May
6 Jul
0 wk
26 May
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
12 – 26 Mar
22 Mar
10-12 wk
4 Jun
3 wk after
Sunflower
Helianthus annuus
7 – 14 May
31 May
3-4 wk
4 Jun
21 Jun
3 wk after
6 Jun
11 Jun
3 wk after
China aster
Callistephus chinensis
9 – 23 Apr
20 May
6-8 wk
4 Jun
1 Jul
3 wk after
21 Jun
21 Jun
5 wk after
Annual phlox
Phlox drummondii
1 – 15 Apr
16 May
6-8 wk
27 May
27 Jun
2 wk after
21 Jun
5 wk after
Hollyhock
Alcea rosea
21 Mar – 4 Apr
6-8 wk
16 May
0 wk
26 May
1 wk after
Alpine delphinium
Delphinium elatum
21 Feb – 21 Mar
21 Apr
8-12 wk
16 May
16 Jun
0 wk
6 Jun
6 Jun
3 wk after
African marigold
Tagetes erecta
9 – 23 Apr
16 May
6-8 wk
4 Jun
27 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
27 Mar – 10 Apr
10 May
6-8 wk
22 May
21 Jun
1 wk after
21 Jun
5 wk after
Wood sage
Salvia nemorosa
7 – 21 Mar
11 Apr
8-10 wk
16 May
6 Jun
0 wk
6 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
12 Apr – 10 May
26 Apr
6-10 wk
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
16 May
16 Jul
0 wk
9 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
26 Mar – 9 Apr
22 Apr
8-10 wk
4 Jun
17 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
21 Mar – 4 Apr
5 May
6-8 wk
16 May
16 Jun
0 wk
26 May
6 Jun
1 wk after