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Method
Rel. frost
Last spring frost (0°C) 29 May Normal year · 20 years of data
Frost-free season 93 days 29 May – 30 Aug
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)
10 – 24 Apr
12 Jun
5-7 wk
29 May
17 Jul
0 wk
30 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
24 Jun
4-6 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
30 Mar
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
14 – 21 May
24 May
3-4 wk
11 Jun
14 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
7 – 14 May
28 May
4-5 wk
11 Jun
25 Jun
2 wk after
23 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 Jun
3-4 wk
7 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
6 Mar – 3 Apr
27 Mar
8-12 wk
29 May
0 wk
4 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
3 Jun
0 wk
30 May
0 wk
Maize
Zea mays
Fleece
7 – 14 May
14 May
3-4 wk
4 Jun
4 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
24 Jun
3-4 wk
31 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
2 Jul
0 wk
29 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
18 May
4-6 wk
8 Jun
15 Jun
1 wk after
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
17 Jun
5-7 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
2 – 9 Jun
3-4 wk
30 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
28 May
3-4 wk
31 May
18 Jun
0 wk
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
6 Jul
3-4 wk
29 May
27 Jul
0 wk
30 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
23 May
2-4 wk
29 May
6 Jun
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
3 Jun
0 wk
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
21 Jul
3-4 wk
29 May
11 Aug
0 wk
26 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
9 – 23 Apr
23 Apr
6-8 wk
4 Jun
4 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
14 – 28 May
31 May
2-4 wk
11 Jun
14 Jun
2 wk after
11 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
21 Jun
3-4 wk
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
30 Apr – 14 May
22 May
4-6 wk
11 Jun
19 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
30 May
15 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
17 May
8-12 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
29 May
4 Aug
0 wk
11 Jun
25 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
2 May
8-10 wk
31 May
27 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
7 May
8-10 wk
29 May
2 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
30 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
15 Mar
10-14 wk
31 May
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
Fleece
14 – 21 May
29 May
3-4 wk
11 Jun
19 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Statice
Limonium sinuatum
2 – 16 Apr
17 Apr
8-10 wk
11 Jun
12 Jun
2 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
16 – 30 Apr
1 May
6-8 wk
11 Jun
12 Jun
2 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
8 May
6-8 wk
9 Jun
19 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
22 May
4-8 wk
23 Jun
4 wk after
23 Jun
4 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
11 Jun
2 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
9 Jun
8-12 wk
30 Jun
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
11 May
6-8 wk
11 Jun
22 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
2 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
10 Apr
8-10 wk
31 May
5 Jun
0 wk
Love in a mist
Nigella damascena
29 May
27 Jun
0 wk
30 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
10 Apr
8-12 wk
31 May
5 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
6 Mar – 3 Apr
18 Mar
8-12 wk
29 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
19 Mar – 16 Apr
14 Apr
8-12 wk
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
16 – 30 Apr
28 Apr
6-8 wk
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
7 May
8-12 wk
29 May
2 Jul
0 wk
8 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
21 Apr – 5 May
27 Apr
8-10 wk
30 Jun
5 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
28 May
5-8 wk
29 May
2 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
11 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
30 Apr – 14 May
7 May
4-6 wk
11 Jun
2 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
8 Jun
2 Jul
1 wk after
Petunia
Petunia
19 Mar – 16 Apr
17 Apr
8-12 wk
11 Jun
12 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
24 Apr
6-8 wk
31 May
5 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
22 May
4-6 wk
11 Jun
19 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
29 May
3-5 wk
11 Jun
19 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
22 May
4-6 wk
11 Jun
19 Jun
2 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
7 Apr – 5 May
14 May
8-12 wk
30 Jun
9 Jul
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
17 Apr
8-12 wk
29 May
12 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Safflower
Carthamus tinctorius
29 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
13 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
4 Jun
4-6 wk
29 May
2 Jul
0 wk
11 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
30 Mar
10-12 wk
4 Jun
8 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
23 May
3-4 wk
11 Jun
13 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
12 May
6-8 wk
11 Jun
23 Jun
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
11 May
6-8 wk
4 Jun
22 Jun
1 wk after
11 Jul
6 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
17 Apr
8-12 wk
29 May
12 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Apr
11 May
6-8 wk
11 Jun
22 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
2 May
6-8 wk
31 May
13 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
7 Apr
8-10 wk
29 May
2 Jun
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
8 May
6-10 wk
11 Jun
19 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
26 Mar – 9 Apr
30 Apr
8-10 wk
4 Jun
25 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after