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Method
Rel. frost
Last spring frost (0°C) 28 May Normal year · 20 years of data
Frost-free season 116 days 28 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)
9 – 23 Apr
16 Jun
5-7 wk
28 May
21 Jul
0 wk
1 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Apr
28 Jun
4-6 wk
28 May
26 Jul
0 wk
1 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
11 Mar – 8 Apr
6 Apr
8-12 wk
3 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Apr
11 Jun
5-7 wk
28 May
16 Jul
0 wk
28 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
13 – 20 May
31 May
3-4 wk
10 Jun
21 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
4-5 wk
29 Jun
5 wk after
16 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
8 – 15 Jun
3-4 wk
6 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Mar – 2 Apr
20 Mar
8-12 wk
28 May
0 wk
18 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
1 Jun
4 Jun
1 wk after
1 Jun
1 wk after
Maize
Zea mays
Fleece
6 – 13 May
21 May
3-4 wk
3 Jun
11 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
4 Jul
3-4 wk
30 May
25 Jul
0 wk
18 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 May
6 Jul
0 wk
28 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Apr
11 Jun
5-7 wk
28 May
16 Jul
0 wk
28 May
6 Jul
0 wk
Potato
Solanum tuberosum
2 – 16 May
19 May
4-6 wk
13 Jun
16 Jun
2 wk after
13 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Apr
21 Jun
5-7 wk
28 May
26 Jul
0 wk
1 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
1 – 8 Jun
5 Jun
3-4 wk
29 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 May
26 May
3-4 wk
30 May
16 Jun
0 wk
18 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Apr
23 Jun
4-6 wk
28 May
21 Jul
0 wk
Lettuce
Lactuca sativa
30 Apr – 7 May
10 Jul
3-4 wk
28 May
31 Jul
0 wk
1 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Apr
23 Jun
4-6 wk
28 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Apr – 14 May
27 May
2-4 wk
28 May
10 Jun
0 wk
28 May
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
1 Jun
4 Jun
1 wk after
1 Jun
1 wk after
Spinach
Spinacia oleracea
30 Apr – 7 May
25 Jul
3-4 wk
28 May
15 Aug
0 wk
24 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
8 – 22 Apr
30 Apr
6-8 wk
3 Jun
11 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 May
7 Jun
2-4 wk
10 Jun
21 Jun
2 wk after
16 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Apr
23 Jun
4-6 wk
28 May
21 Jul
0 wk
Garden pea
Pisum sativum
30 Apr – 7 May
25 Jun
3-4 wk
28 May
16 Jul
0 wk
1 Jun
6 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
18 May – 1 Jun
4-6 wk
29 Jun
5 wk after
Lemon balm
Melissa officinalis
19 Mar – 2 Apr
21 May
8-10 wk
28 May
16 Jul
0 wk
2 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
1 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
2 – 16 Apr
4 Jun
6-8 wk
28 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
5 Mar – 2 Apr
21 May
8-12 wk
28 May
16 Jul
0 wk
2 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
28 May
14 Aug
0 wk
18 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
6 May
8-10 wk
30 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
19 Mar – 2 Apr
11 May
8-10 wk
28 May
6 Jul
0 wk
Oregano
Origanum vulgare
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
0 wk
2 Jul
5 wk after
Parsley
Petroselinum crispum
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
0 wk
1 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
30 Mar
10-14 wk
30 May
8 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
1 – 8 Jun
3-4 wk
29 Jun
5 wk after
Cornflower
Centaurea cyanus
28 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
1 – 15 Apr
23 Apr
8-10 wk
10 Jun
18 Jun
2 wk after
Sweet William
Dianthus barbatus
2 – 16 Apr
6-8 wk
28 May
0 wk
13 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Apr
7 May
6-8 wk
10 Jun
18 Jun
2 wk after
10 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
13 – 27 Apr
13 May
6-8 wk
8 Jun
24 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
7 May – 4 Jun
27 May
4-8 wk
2 Jul
5 wk after
2 Jul
5 wk after
Foxglove
Digitalis purpurea
19 Mar – 2 Apr
8-10 wk
28 May
0 wk
18 Jun
3 wk after
Busy lizzie
Impatiens walleriana
6 Apr – 4 May
14 Jun
8-12 wk
29 Jun
9 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Apr
17 May
6-8 wk
10 Jun
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
2 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
20 Apr
8-10 wk
30 May
15 Jun
0 wk
Love in a mist
Nigella damascena
28 May
1 Jul
0 wk
1 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
15 – 29 Apr
27 Apr
6-8 wk
10 Jun
2 wk after
10 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
20 Apr
8-12 wk
30 May
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
11 Mar – 8 Apr
22 Mar
8-12 wk
3 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
18 Mar – 15 Apr
19 Apr
8-12 wk
10 Jun
14 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
15 – 29 Apr
3 May
6-8 wk
10 Jun
14 Jun
2 wk after
Corn poppy
Papaver rhoeas
28 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
5 Mar – 2 Apr
11 May
8-12 wk
28 May
6 Jul
0 wk
13 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
20 Apr – 4 May
3 May
8-10 wk
29 Jun
5 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Apr
1 Jun
5-8 wk
28 May
6 Jul
0 wk
Stock
Matthiola incana
2 – 16 Apr
4 Jun
6-8 wk
28 May
16 Jul
0 wk
18 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
2 – 16 Apr
5 May
6-8 wk
28 May
16 Jun
0 wk
18 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
29 Apr – 13 May
12 May
4-6 wk
10 Jun
2 wk after
Garden pansy
Viola × wittrockiana
19 Mar – 2 Apr
21 May
8-10 wk
28 May
16 Jul
0 wk
13 Jun
6 Jul
2 wk after
Petunia
Petunia
18 Mar – 15 Apr
23 Apr
8-12 wk
10 Jun
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
4 May
6-8 wk
30 May
15 Jun
0 wk
16 Jul
7 wk after
Common zinnia
Zinnia elegans
29 Apr – 13 May
27 May
4-6 wk
10 Jun
24 Jun
2 wk after
Common morning glory
Ipomoea purpurea
25 May – 8 Jun
3-5 wk
29 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
29 Apr – 13 May
27 May
4-6 wk
10 Jun
24 Jun
2 wk after
16 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
6 Apr – 4 May
19 May
8-12 wk
29 Jun
14 Jul
5 wk after
Bee balm
Monarda didyma
5 Mar – 2 Apr
21 Apr
8-12 wk
28 May
16 Jun
0 wk
2 Jul
5 wk after
Yarrow
Achillea millefolium
2 – 16 Apr
5 Apr
6-8 wk
28 May
0 wk
18 Jun
3 wk after
Safflower
Carthamus tinctorius
28 May
16 Jun
0 wk
1 Jun
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
0 wk
10 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
16 – 30 Apr
8 Jun
4-6 wk
28 May
6 Jul
0 wk
18 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
18 Mar – 1 Apr
26 Mar
10-12 wk
10 Jun
2 wk after
Sunflower
Helianthus annuus
13 – 20 May
7 Jun
3-4 wk
10 Jun
28 Jun
2 wk after
2 Jul
5 wk after
China aster
Callistephus chinensis
15 – 29 Apr
27 May
6-8 wk
10 Jun
8 Jul
2 wk after
16 Jul
7 wk after
Annual phlox
Phlox drummondii
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
1 wk after
16 Jul
7 wk after
Hollyhock
Alcea rosea
2 – 16 Apr
6-8 wk
28 May
0 wk
18 Jun
3 wk after
Alpine delphinium
Delphinium elatum
5 Mar – 2 Apr
21 Apr
8-12 wk
28 May
16 Jun
0 wk
2 Jul
5 wk after
African marigold
Tagetes erecta
15 – 29 Apr
17 May
6-8 wk
10 Jun
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
17 May
6-8 wk
30 May
28 Jun
0 wk
16 Jul
7 wk after
Wood sage
Salvia nemorosa
19 Mar – 2 Apr
11 Apr
8-10 wk
28 May
6 Jun
0 wk
2 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
20 Apr – 18 May
30 Apr
6-10 wk
29 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
28 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
1 – 15 Apr
26 Apr
8-10 wk
10 Jun
21 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Apr
5 May
6-8 wk
28 May
16 Jun
0 wk
18 Jun
3 wk after