Parsnip

Planting window

When to sow, by microclimate — foggier blocks run a different calendar than sunnier ones.

Sunlight

How well it does at each level of direct sun per day.

Soil depth

Root room it needs — useful for sizing raised beds and containers.

Soil pH

The soil acidity it grows best in — most crops sit just below neutral, so this mostly matters for heavily amended or long-reused beds.

Spacing

Room each plant needs — along the row and between rows — for sizing beds.

Growth habit

The shape it makes in the bed and how tall it gets — what tells you whether to give it a trellis, a stake, or just room.

Habit

Low mound

Mature height

12–18 in

Low and self-supporting — no staking needed.

Growing in containers

Whether it does well in a pot, planter, or window box — the SF balcony-and-deck question, weighing its footprint, form, and staying power, not just root depth.

Workable in a large, deep container with attentive watering and feeding.

How to start it

Sow it where it grows, or raise it under cover and set it out — and how far ahead to start the seedlings if it's the latter.

Usually

Direct-sow

Sown straight into the bed it will grow in.

Getting started

How it goes in the ground — how deep to sow or set it, and the soil temperature it needs to wake up. The cold-soil floor is the real limiter for direct-sowing in a foggy SF spring.

Started from

From seed

Ideal soil temp

65–75°F

Sow depth

0.5 in

Time to emerge

14–19 days

Watering & feeding

How thirsty and how hungry it is — the water it wants and how much feeding the bed needs to keep it producing. In the fog belt even a thirsty crop drinks less than it would inland.

Water need

Moderate

Wants steady, even moisture — roughly an inch a week, a little more in a heat spell.

Feeding

Moderate feeder

A balanced feed worked into the bed at planting usually carries it through the season.

Water regularly and evenly for straight roots — wet/dry cycles crack them. A moderate feeder (easy on nitrogen).

Pests & diseases

What tends to trouble this crop — what it is, what you'll see, and what to do about it, least-toxic first.

Harvest & storage

How to tell it's ready to pick, and how to keep it once it's in.

Keeps

MonthsA long keeper — stores for months.

Ready to harvest

Lift the mature roots before the plant sends up a seed stalk; the flavour is sweetest after cool weather.

Storing

Store the roots cold and humid for months, or leave them in the ground and dig through the cool season.

Culinary use & nutrition

What it's for in the kitchen, and the nutrients a 100 g raw serving is a notable source of.

Pollinators & wildlife

What this crop offers the garden's wildlife once it flowers — often the payoff for letting a bolting plant stand.

Beneficial insects

Hoverflies, lady beetles, and parasitoid wasps that keep aphids and caterpillars down.

A parsnip left in the bed runs up a tall yellow umbel in its second year: the root is finished by then, but the flowers are excellent hoverfly and parasitic-wasp food.

Sources