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Method
Rel. frost
Last spring frost (0°C) 26 May Normal year · 20 years of data
Frost-free season 119 days 26 May – 22 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)
7 – 21 Apr
15 Jun
5-7 wk
26 May
20 Jul
0 wk
30 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
27 Jun
4-6 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
16 Apr
8-12 wk
1 Jun
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
30 May – 6 Jun
3-4 wk
27 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
4-5 wk
27 Jun
5 wk after
14 Jul
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
30 Mar
8-12 wk
26 May
0 wk
16 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
14 Jun
1 wk after
30 May
4 Jun
1 wk after
Maize
Zea mays
Fleece
4 – 11 May
31 May
3-4 wk
1 Jun
21 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
4 Jul
3-4 wk
28 May
25 Jul
0 wk
16 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
5 Jul
0 wk
26 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
27 May
4-6 wk
11 Jun
24 Jun
2 wk after
11 Jun
14 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
20 Jun
5-7 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
30 May – 6 Jun
15 Jun
3-4 wk
27 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
10 Jun
3-4 wk
28 May
1 Jul
0 wk
16 Jun
21 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
9 Jul
3-4 wk
26 May
30 Jul
0 wk
30 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
1 Jun
2-4 wk
26 May
15 Jun
0 wk
26 May
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
14 Jun
1 wk after
30 May
4 Jun
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
24 Jul
3-4 wk
26 May
14 Aug
0 wk
22 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
6 – 20 Apr
10 May
6-8 wk
1 Jun
21 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
17 Jun
2-4 wk
8 Jun
1 Jul
2 wk after
14 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
24 Jun
3-4 wk
26 May
15 Jul
0 wk
30 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
16 – 30 May
24 May
4-6 wk
27 Jun
5 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
30 May
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
20 May
8-12 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
14 Aug
0 wk
16 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
5 May
8-10 wk
28 May
30 Jun
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
10 May
8-10 wk
26 May
5 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
27 Mar
10-14 wk
28 May
5 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
30 May – 6 Jun
31 May
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Statice
Limonium sinuatum
30 Mar – 13 Apr
28 Apr
8-10 wk
8 Jun
23 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
12 May
6-8 wk
8 Jun
23 Jun
2 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
14 May
6-8 wk
6 Jun
25 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 May – 2 Jun
28 May
4-8 wk
30 Jun
5 wk after
30 Jun
5 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
18 Jun
8-12 wk
27 Jun
13 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
22 May
6-8 wk
8 Jun
3 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
1 May
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
20 Apr
8-10 wk
28 May
15 Jun
0 wk
Love in a mist
Nigella damascena
26 May
30 Jun
0 wk
30 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
2 May
6-8 wk
8 Jun
13 Jun
2 wk after
8 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
20 Apr
8-12 wk
28 May
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
9 Mar – 6 Apr
21 Mar
8-12 wk
1 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
4 Apr – 2 May
16 Apr
8-12 wk
27 Jun
5 wk after
Globe amaranth
Gomphrena globosa
2 – 16 May
6-8 wk
27 Jun
5 wk after
Corn poppy
Papaver rhoeas
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
10 May
8-12 wk
26 May
5 Jul
0 wk
11 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
8 May
8-10 wk
27 Jun
3 Jul
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
31 May
5-8 wk
26 May
5 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
16 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
16 – 30 May
4-6 wk
27 Jun
5 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Petunia
Petunia
16 Mar – 13 Apr
28 Apr
8-12 wk
8 Jun
23 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
4 May
6-8 wk
28 May
15 Jun
0 wk
14 Jul
7 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
31 May
4-6 wk
8 Jun
28 Jun
2 wk after
Common morning glory
Ipomoea purpurea
23 May – 6 Jun
31 May
3-5 wk
27 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
28 May
4-6 wk
8 Jun
25 Jun
2 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
25 Apr – 23 May
16 May
8-12 wk
18 Jul
8 wk after
Bee balm
Monarda didyma
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
4 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
15 Jun
0 wk
30 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
8 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
7 Jun
4-6 wk
26 May
5 Jul
0 wk
16 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Mar
27 Mar
10-12 wk
8 Jun
2 wk after
Sunflower
Helianthus annuus
11 – 18 May
4 Jun
3-4 wk
8 Jun
25 Jun
2 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
13 – 27 Apr
24 May
6-8 wk
8 Jun
5 Jul
2 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
1 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
13 – 27 Apr
22 May
6-8 wk
8 Jun
3 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
14 May
6-8 wk
28 May
25 Jun
0 wk
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
10 Apr
8-10 wk
26 May
5 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
18 Apr – 16 May
10 May
6-10 wk
27 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
24 Apr
8-10 wk
8 Jun
19 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after