Fertilising guide

How to fertilise Escarole 'Batavian Full Heart' (Cichorium endivia var. latifolium 'Batavian Full Heart')— schedule & NPK

Also called Batavian Full Heart escarole, broad-leaved endive.

More about escarole 'batavian full heart'

About Escarole 'Batavian Full Heart'

Cichorium endivia var. latifolium 'Batavian Full Heart' · also called Batavian Full Heart escarole, broad-leaved endive · edible

'Batavian Full Heart' is a broad-leaved escarole forming a large, full rosette of crisp, mildly bitter green leaves with a substantial blanched heart. Hardier and less bitter than curly endive, it stands well into autumn and copes with light frost. Excellent cooked or in robust salads, and easy to blanch for a sweeter centre.

Growth habit: Large, fairly upright rosette of broad, wavy-edged leaves folding over a self-blanching full heart, on a shallow root; bolts to a branched flower stem in heat or its second year.

Watch for — Patchy blanching: Tying or covering a damp heart can cause rot instead of a sweet pale centre. Blanch only dry plants for around 1-2 weeks and inspect regularly for slimy leaves.

What fertiliser escarole 'batavian full heart' actually wants — and why

Escarole 'Batavian Full Heart' feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for escarole 'batavian full heart': match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.

How often to feed escarole 'batavian full heart', and which months

Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For escarole 'batavian full heart':

Moderate feeder: incorporate compost before sowing and give a balanced feed mid-season to keep growth steady and the leaves tender. Fast, even growth produces the fullest, mildest hearts; avoid letting plants check and toughen. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

The dormant-season rule matters more than the exact interval: skip feeding entirely when escarole 'batavian full heart' is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.

What strength to mix for escarole 'batavian full heart'

Follow the crop-feed label rate for escarole 'batavian full heart' — these are calibrated for hungry vegetables. Consistency through fruiting matters more than strength; erratic feeding causes problems like blossom-end rot.

Feeding always goes onto already-damp soil, never dry roots — water escarole 'batavian full heart' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the escarole 'batavian full heart' watering schedule.

Signs you are over-feeding escarole 'batavian full heart'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for escarole 'batavian full heart':

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen).
Lush foliage hiding the crop; soft growth prone to pests and disease.
Salt crust on the soil and scorched leaf edges in containers.

Signs you are under-feeding escarole 'batavian full heart'

Pale, yellowing lower leaves and stunted growth.
Small fruit, poor set, and a quickly exhausted plant.
Blossom-end rot and weak cropping from erratic or insufficient feeding.

If the symptoms point at watering, light or roots rather than nutrition, the full escarole 'batavian full heart' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

In containers, fertiliser salts build up fast — water escarole 'batavian full heart' thoroughly so excess drains from the base each time, and flush pots with plain water every few weeks to prevent a damaging salt build-up.

Organic vs synthetic feeds for escarole 'batavian full heart'

Organic options

Garden compost or well-rotted manure dug in before planting, plus a liquid comfrey or seaweed feed once fruiting starts. UK: comfrey feed or organic Tomorite; US: Espoma Tomato-tone or Neptune's Harvest. Builds soil and feeds in one.

Synthetic / liquid feeds

A balanced feed at planting then a high-potash tomato feed in fruiting — UK: Growmore at planting then Tomorite (Levington) or Phostrogen; US: a balanced 10-10-10 then Miracle-Gro Tomato or a bloom booster.

Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.

Fertilising escarole 'batavian full heart' — frequently asked questions

What fertiliser does escarole 'batavian full heart' need?

Balanced (even N-P-K) at planting for roots and frame, then switch to a high-potassium ("high-potash") tomato-style feed once the first flowers open — potassium is what sizes and ripens fruit, not nitrogen. Escarole 'Batavian Full Heart' feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

How often should I feed escarole 'batavian full heart'?

Moderate feeder: incorporate compost before sowing and give a balanced feed mid-season to keep growth steady and the leaves tender. Fast, even growth produces the fullest, mildest hearts; avoid letting plants check and toughen. Moderate feeder: incorporate compost before sowing and give a balanced feed mid-season to keep growth steady and the leaves tender. Fast, even growth produces the fullest, mildest hearts; avoid letting plants check and toughen. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

What strength of feed for escarole 'batavian full heart'?

What does over-feeding escarole 'batavian full heart' look like?

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen). Lush foliage hiding the crop; soft growth prone to pests and disease. Salt crust on the soil and scorched leaf edges in containers. Staying on a high-nitrogen feed once escarole 'batavian full heart' starts flowering is the classic error — you get a huge leafy plant and a disappointing crop. Switch to high-potash the moment flowers appear.

Should I flush the soil of escarole 'batavian full heart'?