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Method
Rel. frost
Last spring frost (0°C) 22 May Normal year · 20 years of data
Frost-free season 122 days 22 May – 21 Sep
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)
3 – 17 Apr
15 Jun
5-7 wk
22 May
20 Jul
0 wk
26 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
27 Jun
4-6 wk
22 May
25 Jul
0 wk
26 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
14 Mar – 11 Apr
13 Apr
8-12 wk
6 Jun
8 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
10 Jun
5-7 wk
22 May
15 Jul
0 wk
22 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
21 – 28 May
7 Jun
3-4 wk
18 Jun
28 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
30 May – 6 Jun
4-5 wk
4 Jul
6 wk after
10 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
29 Mar
8-12 wk
22 May
24 May
0 wk
12 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
13 Jun
1 wk after
26 May
3 Jun
1 wk after
Maize
Zea mays
Fleece
9 – 16 May
28 May
3-4 wk
6 Jun
18 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
4 Jul
3-4 wk
30 May
25 Jul
1 wk after
12 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
5 Jul
0 wk
22 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
10 Jun
5-7 wk
22 May
15 Jul
0 wk
22 May
5 Jul
0 wk
Potato
Solanum tuberosum
26 Apr – 10 May
25 May
4-6 wk
7 Jun
22 Jun
2 wk after
7 Jun
12 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
20 Jun
5-7 wk
22 May
25 Jul
0 wk
26 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
6 – 13 Jun
12 Jun
3-4 wk
4 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 May
2 Jun
3-4 wk
30 May
23 Jun
1 wk after
12 Jun
13 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
22 Jun
4-6 wk
22 May
20 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
9 Jul
3-4 wk
22 May
30 Jul
0 wk
26 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
22 Jun
4-6 wk
22 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
24 Apr – 8 May
1 Jun
2-4 wk
22 May
15 Jun
0 wk
22 May
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
13 Jun
1 wk after
26 May
3 Jun
1 wk after
Spinach
Spinacia oleracea
24 Apr – 1 May
24 Jul
3-4 wk
22 May
14 Aug
0 wk
18 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
11 – 25 Apr
7 May
6-8 wk
6 Jun
18 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
21 May – 4 Jun
14 Jun
2-4 wk
18 Jun
28 Jun
4 wk after
10 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
22 Jun
4-6 wk
22 May
20 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
24 Jun
3-4 wk
22 May
15 Jul
0 wk
26 May
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
23 May – 6 Jun
4-6 wk
4 Jul
6 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
20 May
8-10 wk
22 May
15 Jul
0 wk
26 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
26 May
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
3 Jun
6-8 wk
22 May
15 Jul
0 wk
26 May
5 Jul
1 wk after
Spearmint
Mentha spicata
27 Feb – 27 Mar
20 May
8-12 wk
22 May
15 Jul
0 wk
26 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
22 May
14 Aug
0 wk
12 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
5 May
8-10 wk
30 May
30 Jun
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Mar
10 May
8-10 wk
22 May
5 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
24 May
6-8 wk
22 May
5 Jul
0 wk
26 Jun
5 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
24 May
6-8 wk
22 May
5 Jul
0 wk
26 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
6 Apr
10-14 wk
30 May
15 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
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Cornflower
Centaurea cyanus
22 May
15 Jul
0 wk
26 May
5 Jul
1 wk after
Statice
Limonium sinuatum
9 – 23 Apr
29 Apr
8-10 wk
18 Jun
24 Jun
4 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
7 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Apr – 7 May
13 May
6-8 wk
18 Jun
24 Jun
4 wk after
4 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
16 May
6-8 wk
10 Jun
27 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
1 – 29 May
30 May
4-8 wk
26 Jun
27 Jun
5 wk after
26 Jun
5 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
12 Jun
3 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
17 Jun
8-12 wk
4 Jul
12 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
23 May
6-8 wk
18 Jun
4 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
4 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
20 Apr
8-10 wk
30 May
15 Jun
1 wk after
Love in a mist
Nigella damascena
22 May
30 Jun
0 wk
26 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
23 Apr – 7 May
3 May
6-8 wk
18 Jun
4 wk after
4 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
20 Apr
8-12 wk
30 May
15 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
14 Mar – 11 Apr
21 Mar
8-12 wk
6 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
26 Mar – 23 Apr
22 Apr
8-12 wk
18 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
23 Apr – 7 May
6 May
6-8 wk
18 Jun
4 wk after
Corn poppy
Papaver rhoeas
22 May
15 Jul
0 wk
26 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
10 May
8-12 wk
22 May
5 Jul
0 wk
7 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
25 Apr – 9 May
9 May
8-10 wk
4 Jul
4 Jul
6 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
31 May
5-8 wk
22 May
5 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
3 Jun
6-8 wk
22 May
15 Jul
0 wk
12 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
4 May
6-8 wk
22 May
15 Jun
0 wk
12 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
7 – 21 May
15 May
4-6 wk
18 Jun
4 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
20 May
8-10 wk
22 May
15 Jul
0 wk
7 Jun
5 Jul
2 wk after
Petunia
Petunia
26 Mar – 23 Apr
29 Apr
8-12 wk
18 Jun
24 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
4 May
6-8 wk
30 May
15 Jun
1 wk after
10 Jul
7 wk after
Common zinnia
Zinnia elegans
7 – 21 May
30 May
4-6 wk
18 Jun
27 Jun
4 wk after
Common morning glory
Ipomoea purpurea
30 May – 13 Jun
3-5 wk
4 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
30 May
4-6 wk
18 Jun
27 Jun
4 wk after
10 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
11 Apr – 9 May
22 May
8-12 wk
4 Jul
17 Jul
6 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
20 Apr
8-12 wk
22 May
15 Jun
0 wk
26 Jun
5 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
4 Apr
6-8 wk
22 May
0 wk
12 Jun
3 wk after
Safflower
Carthamus tinctorius
22 May
15 Jun
0 wk
26 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
24 May
6-8 wk
22 May
5 Jul
0 wk
4 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
7 Jun
4-6 wk
22 May
5 Jul
0 wk
12 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
26 Mar – 9 Apr
29 Mar
10-12 wk
18 Jun
4 wk after
Sunflower
Helianthus annuus
21 – 28 May
14 Jun
3-4 wk
18 Jun
5 Jul
4 wk after
26 Jun
5 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
3 Jun
6-8 wk
18 Jun
15 Jul
4 wk after
10 Jul
7 wk after
Annual phlox
Phlox drummondii
11 – 25 Apr
23 May
6-8 wk
6 Jun
4 Jul
2 wk after
10 Jul
7 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
12 Jun
3 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
20 Apr
8-12 wk
22 May
15 Jun
0 wk
26 Jun
5 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
23 May
6-8 wk
18 Jun
4 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
24 May
6-8 wk
30 May
5 Jul
1 wk after
10 Jul
7 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
10 Apr
8-10 wk
22 May
5 Jun
0 wk
26 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
25 Apr – 23 May
7 May
6-10 wk
4 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
22 May
15 Jul
0 wk
26 May
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
28 Apr
8-10 wk
18 Jun
23 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
4 May
6-8 wk
22 May
15 Jun
0 wk
12 Jun
3 wk after