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Method
Rel. frost
Last spring frost (0°C) 22 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 90 days 22 Jun – 20 Sep
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)
4 – 18 May
15 Jun
5-7 wk
22 Jun
20 Jul
0 wk
26 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
11 – 25 May
27 Jun
4-6 wk
22 Jun
25 Jul
0 wk
26 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
5 Apr – 3 May
8-12 wk
28 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 May
10 Jun
5-7 wk
22 Jun
15 Jul
0 wk
22 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
31 May – 7 Jun
7 Jun
4-5 wk
5 Jul
5 Jul
2 wk after
27 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 Jul
3-4 wk
31 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
30 Mar – 27 Apr
31 Mar
8-12 wk
22 Jun
0 wk
22 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
26 Jun
1 wk after
26 Jun
1 wk after
Maize
Zea mays
Season too short
25 May – 1 Jun
3-4 wk
22 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
27 May – 3 Jun
4 Jul
3-4 wk
24 Jun
25 Jul
0 wk
13 Jul
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 Jun
5 Jul
0 wk
22 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
4 – 18 May
10 Jun
5-7 wk
22 Jun
15 Jul
0 wk
22 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
Fleece
15 – 29 May
30 May
4-6 wk
26 Jun
27 Jun
1 wk after
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 May
20 Jun
5-7 wk
22 Jun
25 Jul
0 wk
26 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
27 May – 3 Jun
3-4 wk
24 Jun
0 wk
13 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
11 – 25 May
22 Jun
4-6 wk
22 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
25 May – 1 Jun
9 Jul
3-4 wk
22 Jun
30 Jul
0 wk
26 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
11 – 25 May
22 Jun
4-6 wk
22 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 May – 8 Jun
1 Jun
2-4 wk
22 Jun
0 wk
22 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 Jun
1 wk after
26 Jun
1 wk after
Spinach
Spinacia oleracea
25 May – 1 Jun
24 Jul
3-4 wk
22 Jun
14 Aug
0 wk
18 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
24 Jul – 7 Aug
4-6 wk
4 Sep
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
25 May – 8 Jun
2-4 wk
22 Jun
0 wk
13 Jul
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
11 – 25 May
22 Jun
4-6 wk
22 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
25 May – 1 Jun
24 Jun
3-4 wk
22 Jun
15 Jul
0 wk
26 Jun
5 Jul
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
Season too short
17 – 31 May
4-6 wk
28 Jun
1 wk after
Lemon balm
Melissa officinalis
13 – 27 Apr
20 May
8-10 wk
22 Jun
15 Jul
0 wk
27 Jul
5 wk after
Dill
Anethum graveolens
26 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
27 Apr – 11 May
3 Jun
6-8 wk
22 Jun
15 Jul
0 wk
26 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
30 Mar – 27 Apr
20 May
8-12 wk
22 Jun
15 Jul
0 wk
27 Jul
5 wk after
Coriander
Coriandrum sativum
22 Jun
14 Aug
0 wk
13 Jul
4 Aug
3 wk after
Garden sage
Salvia officinalis
15 – 29 Apr
5 May
8-10 wk
24 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
13 – 27 Apr
10 May
8-10 wk
22 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
27 Apr – 11 May
24 May
6-8 wk
22 Jun
5 Jul
0 wk
27 Jul
5 wk after
Parsley
Petroselinum crispum
27 Apr – 11 May
24 May
6-8 wk
22 Jun
5 Jul
0 wk
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
16 Mar – 13 Apr
6 Apr
10-14 wk
22 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
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
1 wk after
Cornflower
Centaurea cyanus
22 Jun
15 Jul
0 wk
26 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Season too short
13 – 27 Apr
8-10 wk
22 Jun
0 wk
Sweet William
Dianthus barbatus
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
8 Jul
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
2 Aug
6 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
27 Apr – 11 May
3 May
6-8 wk
22 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
7 May – 4 Jun
17 May
4-8 wk
2 Jul
1 wk after
2 Jul
1 wk after
Foxglove
Digitalis purpurea
13 – 27 Apr
8-10 wk
22 Jun
0 wk
13 Jul
3 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
5 Apr – 3 May
14 May
8-12 wk
28 Jun
9 Jul
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
27 Apr – 11 May
4 May
6-8 wk
22 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
24 May – 7 Jun
4-6 wk
5 Jul
2 wk after
Chinese lantern
Physalis alkekengi
15 – 29 Apr
20 Apr
8-10 wk
24 Jun
0 wk
Love in a mist
Nigella damascena
22 Jun
30 Jun
0 wk
26 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
2 Aug
6 wk after
Purple-top vervain
Verbena bonariensis
1 – 29 Apr
20 Apr
8-12 wk
24 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
30 Mar – 27 Apr
8-12 wk
22 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
5 Apr – 3 May
8-12 wk
28 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
3 – 17 May
6-8 wk
28 Jun
1 wk after
Corn poppy
Papaver rhoeas
22 Jun
15 Jul
0 wk
26 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
30 Mar – 27 Apr
10 May
8-12 wk
22 Jun
5 Jul
0 wk
8 Jul
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
19 Apr – 3 May
20 Apr
8-10 wk
28 Jun
1 wk after
Sweet pea
Lathyrus odoratus
27 Apr – 18 May
31 May
5-8 wk
22 Jun
5 Jul
0 wk
Stock
Matthiola incana
27 Apr – 11 May
3 Jun
6-8 wk
22 Jun
15 Jul
0 wk
13 Jul
3 wk after
Wormwood
Artemisia absinthium
27 Apr – 11 May
4 May
6-8 wk
22 Jun
0 wk
13 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
17 – 31 May
4-6 wk
28 Jun
1 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Apr
20 May
8-10 wk
22 Jun
15 Jul
0 wk
8 Jul
2 wk after
Petunia
Petunia
Season too short
30 Mar – 27 Apr
10 Apr
8-12 wk
22 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
29 Apr – 13 May
4 May
6-8 wk
24 Jun
0 wk
10 Aug
7 wk after
Common zinnia
Zinnia elegans
Season too short
11 – 25 May
4-6 wk
22 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
24 May – 7 Jun
3-5 wk
28 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
11 – 25 May
17 May
4-6 wk
22 Jun
0 wk
13 Jul
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
12 Apr – 10 May
8-12 wk
5 Jul
2 wk after
Bee balm
Monarda didyma
30 Mar – 27 Apr
20 Apr
8-12 wk
22 Jun
0 wk
27 Jul
5 wk after
Yarrow
Achillea millefolium
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
13 Jul
3 wk after
Safflower
Carthamus tinctorius
22 Jun
0 wk
26 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
27 Apr – 11 May
24 May
6-8 wk
22 Jun
5 Jul
0 wk
4 Jun
25 Jun
3 wk before
Bishop's flower
Ammi majus
11 – 25 May
7 Jun
4-6 wk
22 Jun
5 Jul
0 wk
13 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
5 – 19 Apr
10-12 wk
28 Jun
1 wk after
Sunflower
Helianthus annuus
7 – 14 Jun
3-4 wk
5 Jul
2 wk after
27 Jul
5 wk after
China aster
Callistephus chinensis
10 – 24 May
26 May
6-8 wk
5 Jul
7 Jul
2 wk after
10 Aug
7 wk after
Annual phlox
Phlox drummondii
Greenhouse
27 Apr – 11 May
4 May
6-8 wk
22 Jun
0 wk
13 Jul
3 wk after
Hollyhock
Alcea rosea
27 Apr – 11 May
6-8 wk
22 Jun
0 wk
13 Jul
3 wk after
Alpine delphinium
Delphinium elatum
30 Mar – 27 Apr
20 Apr
8-12 wk
22 Jun
0 wk
27 Jul
5 wk after
African marigold
Tagetes erecta
Greenhouse
27 Apr – 11 May
4 May
6-8 wk
22 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
29 Apr – 13 May
16 May
6-8 wk
24 Jun
27 Jun
0 wk
10 Aug
7 wk after
Wood sage
Salvia nemorosa
13 – 27 Apr
8-10 wk
22 Jun
0 wk
27 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
19 Apr – 17 May
6-10 wk
28 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
22 Jun
15 Jul
0 wk
26 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
26 Apr – 10 May
8-10 wk
5 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
27 Apr – 11 May
4 May
6-8 wk
22 Jun
0 wk
13 Jul
3 wk after