Fertilising guide

How to fertilise Mortgage Lifter Bean (Phaseolus vulgaris 'Dragon Tongue')— schedule & NPK

Also called Dragon Tongue bean, Dutch yellow wax bean, purple-streaked bean.

More about mortgage lifter bean

About Mortgage Lifter Bean

Phaseolus vulgaris 'Dragon Tongue' · also called Dragon Tongue bean, Dutch yellow wax bean · edible

Dragon Tongue is a Dutch heirloom bush bean (Phaseolus vulgaris) with flat, creamy-yellow pods streaked purple, eaten young as a snap bean or dried as a shell bean. It is a compact, fast, productive bush needing full sun, warm soil and even moisture, and crops within about 60 days of sowing.

Growth habit: Compact, self-supporting bush bean reaching maturity quickly; bears flat pods in flushes that benefit from regular picking.

What fertiliser mortgage lifter bean actually wants — and why

Mortgage Lifter Bean 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 mortgage lifter bean: 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 mortgage lifter bean, 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 mortgage lifter bean:

Low feed needs: a single dose of balanced fertiliser or compost at sowing is usually enough. Excess nitrogen produces leaves at the expense of pods, since beans fix their own nitrogen. 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 mortgage lifter bean 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 mortgage lifter bean

Follow the crop-feed label rate for mortgage lifter bean — 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 mortgage lifter bean first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the mortgage lifter bean watering schedule.

Signs you are over-feeding mortgage lifter bean

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for mortgage lifter bean:

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 mortgage lifter bean

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 mortgage lifter bean 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 mortgage lifter bean 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 mortgage lifter bean

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 mortgage lifter bean — frequently asked questions

What fertiliser does mortgage lifter bean 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. Mortgage Lifter Bean 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 mortgage lifter bean?

Low feed needs: a single dose of balanced fertiliser or compost at sowing is usually enough. Excess nitrogen produces leaves at the expense of pods, since beans fix their own nitrogen. Low feed needs: a single dose of balanced fertiliser or compost at sowing is usually enough. Excess nitrogen produces leaves at the expense of pods, since beans fix their own nitrogen. 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 mortgage lifter bean?

What does over-feeding mortgage lifter bean 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 mortgage lifter bean 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 mortgage lifter bean?