Parsnip 'Cobham Improved Marrow'

A partial sun position will ensure your plant thrives and remember to water moderately. Keep in mind when planting that Cobham Improved Marrow is thought of as half hardy, so it will require protection in frosts and low temperatures. Ideally plant in loamy soil and try to keep the ph of your soil between the range of 6.0 and 6.5 as Cobham Improved Marrow likes to be in weakly acidic soil.

Can be slow and erratic to germinate so keep soil moist. Till or spade soil 12 – 16 inches to allow roots to elongate and develop to their full size.

Sow at a depth of approx. 0.47 inches (1.2 cm) and aim for a distance of at least 0.98 inches (2.5 cm) between Parsnip plants. Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.

By our calculations, you should look at sowing Cobham Improved Marrow about 15 days after your last frost date.

Not recommended for sowing indoors.

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Cobham Improved Marrow is a half hardy plant.