🥒 Cucumber 'Telegraph Improved'

Sowing window (UK)	February to May
Minimum soil temperature	15°C at seed depth
Sowing depth	2 cm
Spacing	45 cm apart
Days to germination	8 days
Days to harvest	140 days
Sowing method	Start under cover, transplant out
Frost hardy	No
Sun	full-sun
Watering	high
Plant family	Cucurbitaceae

When should I sow Cucumber 'Telegraph Improved' in the UK?

In the UK, sow Cucumber 'Telegraph Improved' from February to May. It is normally started under cover and transplanted. Wait until the soil has reached 15°C at seed depth rather than going by the calendar - cucumber will sit and rot in cold ground.

What soil temperature does Cucumber 'Telegraph Improved' need to germinate?

Cucumber 'Telegraph Improved' needs a minimum soil temperature of 15°C at seed depth to germinate reliably. Below that, germination is slow and patchy, and seed is more likely to rot than sprout. Measure at around 5cm down, in the morning, rather than trusting air temperature.

How deep and how far apart should I sow Cucumber 'Telegraph Improved'?

For Cucumber 'Telegraph Improved', sow it 2cm deep and space plants 45cm apart.

How long does Cucumber 'Telegraph Improved' take to grow?

Cucumber 'Telegraph Improved' takes roughly 140 days from sowing to harvest. Seed usually germinates in about 8 days.

Is Cucumber 'Telegraph Improved' frost hardy?

No. Cucumber 'Telegraph Improved' is not frost hardy. Do not put it outside until the risk of frost has passed in your area, and be ready to fleece it if a late frost is forecast.

Sowing data cross-checked against RHS growing guides and UK seed-merchant catalogues. Soil temperatures are the minimum for reliable germination, measured at seed depth.