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Method
Rel. frost
Last spring frost (0°C) 3 Jun Normal year · 20 years of data
Frost-free season 103 days 3 Jun – 14 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)
15 – 29 Apr
14 Jun
5-7 wk
3 Jun
19 Jul
0 wk
7 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
26 Jun
4-6 wk
3 Jun
24 Jul
0 wk
7 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Apr
9 Jun
5-7 wk
3 Jun
14 Jul
0 wk
3 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
27 May
3-4 wk
9 Jun
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
12 – 19 May
1 Jun
4-5 wk
16 Jun
29 Jun
2 wk after
8 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
11 Mar – 8 Apr
30 Mar
8-12 wk
3 Jun
0 wk
3 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
7 Jun
1 wk after
7 Jun
1 wk after
Maize
Zea mays
Greenhouse
6 – 13 May
17 May
3-4 wk
3 Jun
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
8 – 15 May
28 Jun
3-4 wk
5 Jun
19 Jul
0 wk
24 Jun
9 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Jun
4 Jul
0 wk
3 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Apr
9 Jun
5-7 wk
3 Jun
14 Jul
0 wk
3 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
8 – 22 May
4-6 wk
19 Jun
2 wk after
19 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Apr
19 Jun
5-7 wk
3 Jun
24 Jul
0 wk
7 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
19 – 26 May
1 Jun
3-4 wk
16 Jun
22 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
8 – 15 May
3-4 wk
5 Jun
0 wk
24 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
21 Jun
4-6 wk
3 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 May
8 Jul
3-4 wk
3 Jun
29 Jul
0 wk
7 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Apr – 6 May
21 Jun
4-6 wk
3 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 May
20 May
2-4 wk
3 Jun
3 Jun
0 wk
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 Jun
1 wk after
7 Jun
1 wk after
Spinach
Spinacia oleracea
6 – 13 May
23 Jul
3-4 wk
3 Jun
13 Aug
0 wk
30 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
5 – 19 Jul
4-6 wk
16 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
8 – 22 Apr
26 Apr
6-8 wk
3 Jun
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
3 Jun
2-4 wk
9 Jun
17 Jun
1 wk after
8 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
21 Jun
4-6 wk
3 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 May
23 Jun
3-4 wk
3 Jun
14 Jul
0 wk
7 Jun
4 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
Fleece
5 – 19 May
10 May
4-6 wk
16 Jun
2 wk after
Lemon balm
Melissa officinalis
25 Mar – 8 Apr
19 May
8-10 wk
3 Jun
14 Jul
0 wk
8 Jul
5 wk after
Dill
Anethum graveolens
7 Jun
19 Jul
1 wk after
Wild chives
Allium schoenoprasum
8 – 22 Apr
2 Jun
6-8 wk
3 Jun
14 Jul
0 wk
7 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
11 Mar – 8 Apr
19 May
8-12 wk
3 Jun
14 Jul
0 wk
8 Jul
5 wk after
Coriander
Coriandrum sativum
3 Jun
8 Aug
0 wk
24 Jun
29 Jul
3 wk after
Garden sage
Salvia officinalis
27 Mar – 10 Apr
4 May
8-10 wk
5 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
25 Mar – 8 Apr
9 May
8-10 wk
3 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
8 – 22 Apr
23 May
6-8 wk
3 Jun
4 Jul
0 wk
8 Jul
5 wk after
Parsley
Petroselinum crispum
8 – 22 Apr
23 May
6-8 wk
3 Jun
4 Jul
0 wk
7 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
27 Feb – 27 Mar
26 Mar
10-14 wk
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
Fleece
19 – 26 May
3-4 wk
16 Jun
2 wk after
Cornflower
Centaurea cyanus
3 Jun
14 Jul
0 wk
7 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
7 – 21 Apr
16 Apr
8-10 wk
16 Jun
2 wk after
Sweet William
Dianthus barbatus
8 – 22 Apr
6-8 wk
3 Jun
0 wk
19 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
21 Apr – 5 May
30 Apr
6-8 wk
16 Jun
2 wk after
16 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
6 May
6-8 wk
14 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
29 Apr – 27 May
31 May
4-8 wk
24 Jun
28 Jun
3 wk after
24 Jun
3 wk after
Foxglove
Digitalis purpurea
25 Mar – 8 Apr
8-10 wk
3 Jun
0 wk
24 Jun
3 wk after
Busy lizzie
Impatiens walleriana
12 Apr – 10 May
28 May
8-12 wk
5 Jul
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
21 Apr – 5 May
10 May
6-8 wk
16 Jun
21 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
5 – 19 May
4-6 wk
16 Jun
2 wk after
Chinese lantern
Physalis alkekengi
27 Mar – 10 Apr
14 Apr
8-10 wk
5 Jun
9 Jun
0 wk
Love in a mist
Nigella damascena
3 Jun
29 Jun
0 wk
7 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
14 – 28 Apr
1 May
6-8 wk
9 Jun
12 Jun
1 wk after
1 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
13 Mar – 10 Apr
14 Apr
8-12 wk
5 Jun
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
17 Mar – 14 Apr
20 Mar
8-12 wk
9 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
17 Mar – 14 Apr
22 Apr
8-12 wk
9 Jun
17 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
14 – 28 Apr
6 May
6-8 wk
9 Jun
17 Jun
1 wk after
Corn poppy
Papaver rhoeas
3 Jun
14 Jul
0 wk
7 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
11 Mar – 8 Apr
9 May
8-12 wk
3 Jun
4 Jul
0 wk
19 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
7 – 21 Apr
7 May
8-10 wk
16 Jun
2 Jul
2 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Apr
30 May
5-8 wk
3 Jun
4 Jul
0 wk
Stock
Matthiola incana
8 – 22 Apr
2 Jun
6-8 wk
3 Jun
14 Jul
0 wk
24 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
8 – 22 Apr
3 May
6-8 wk
3 Jun
14 Jun
0 wk
24 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
28 Apr – 12 May
15 May
4-6 wk
9 Jun
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
25 Mar – 8 Apr
19 May
8-10 wk
3 Jun
14 Jul
0 wk
19 Jun
4 Jul
2 wk after
Petunia
Petunia
24 Mar – 21 Apr
16 Apr
8-12 wk
16 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Apr
28 Apr
6-8 wk
5 Jun
9 Jun
0 wk
22 Jul
7 wk after
Common zinnia
Zinnia elegans
5 – 19 May
10 May
4-6 wk
16 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
12 – 26 May
17 May
3-5 wk
16 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
5 – 19 May
20 May
4-6 wk
16 Jun
17 Jun
2 wk after
22 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
24 Mar – 21 Apr
22 May
8-12 wk
16 Jun
17 Jul
2 wk after
Bee balm
Monarda didyma
11 Mar – 8 Apr
19 Apr
8-12 wk
3 Jun
14 Jun
0 wk
8 Jul
5 wk after
Yarrow
Achillea millefolium
8 – 22 Apr
6-8 wk
3 Jun
0 wk
24 Jun
3 wk after
Safflower
Carthamus tinctorius
3 Jun
14 Jun
0 wk
7 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
8 – 22 Apr
23 May
6-8 wk
3 Jun
4 Jul
0 wk
16 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
22 Apr – 6 May
6 Jun
4-6 wk
3 Jun
4 Jul
0 wk
24 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
17 – 31 Mar
30 Mar
10-12 wk
9 Jun
1 wk after
Sunflower
Helianthus annuus
19 – 26 May
3 Jun
3-4 wk
16 Jun
24 Jun
2 wk after
8 Jul
5 wk after
China aster
Callistephus chinensis
21 Apr – 5 May
23 May
6-8 wk
16 Jun
4 Jul
2 wk after
22 Jul
7 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
1 wk after
22 Jul
7 wk after
Hollyhock
Alcea rosea
8 – 22 Apr
6-8 wk
3 Jun
0 wk
24 Jun
3 wk after
Alpine delphinium
Delphinium elatum
11 Mar – 8 Apr
19 Apr
8-12 wk
3 Jun
14 Jun
0 wk
8 Jul
5 wk after
African marigold
Tagetes erecta
21 Apr – 5 May
10 May
6-8 wk
16 Jun
21 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Apr
13 May
6-8 wk
5 Jun
24 Jun
0 wk
22 Jul
7 wk after
Wood sage
Salvia nemorosa
25 Mar – 8 Apr
9 Apr
8-10 wk
3 Jun
4 Jun
0 wk
8 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
7 Apr – 5 May
26 Apr
6-10 wk
16 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
3 Jun
14 Jul
0 wk
7 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
7 – 21 Apr
24 Apr
8-10 wk
16 Jun
19 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Apr
3 May
6-8 wk
3 Jun
14 Jun
0 wk
24 Jun
3 wk after