Philodendron 'Florida Ghost'

Florida Ghost

Family
Araceae
Native to
Mexico to tropical America and the Caribbean
Habit
Climber

My plant

Where it comes from

A hybrid with parents rather than a range. Both species behind the ‘Florida’ line are well documented — Kew accepts Philodendron pedatum, from across northern and central South America, and Philodendron squamiferum, from French Guiana, Suriname and northern Brazil12 — but the cross itself is not.

The usual account is that ‘Florida’ came out of Robert McColley’s breeding programme at Bamboo Nursery in Apopka, Florida, as P. squamiferum × P. pedatum. The programme itself is documented: it ran from the 1960s and produced several familiar self-heading hybrids, and it appears in a plant patent and a horticultural review.34 Neither document mentions ‘Florida’ or that cross, though; the attribution lives in nursery and forum sources, and one long-time aroid grower doubts the parentage outright.5 Whether P. laciniatum — now a synonym of P. pedatum6 — was involved under its old name is one of the details nobody can settle.

‘Florida Ghost’ is a sport of ‘Florida’ — a mutation found on that hybrid and propagated for what its new leaves do — rather than a separate cross.7

Naming and description

The ‘Florida’ cultivars are a cluster rather than a family tree: ‘Florida Ghost’, ‘Florida Beauty’ and ‘Florida Bronze’ share a look and a climbing, lobed-leaf habit, and are grouped by what they resemble more than by any confirmed pedigree. Reading them as siblings with a known parent is reading more into the names than the records support.

What sets this one apart is the new growth. A leaf unfurls creamy white — the ghost — and greens over the following weeks as its chloroplasts mature and chlorophyll fills in; in brighter light the leaves come out paler and stay pale longer.78 It is not variegation and it does not persist. A plant with several pale leaves at once is a plant growing quickly, not a plant with a stable pattern: ‘Florida Beauty’ has chimeral variegation that stays; the ghost is a phase.

The petioles carry a faint roughness from the squamiferum side, where the petioles are covered in small spreading scales that read as bristles.9 Here it is far less pronounced.

Fun facts

  • The white is temporary, and that is the whole plant. Every ‘Florida Ghost’ leaf ends up green. What varies between plants is how long the pale phase lasts and how many leaves are in it at once, and both follow light and growth rate rather than anything about the plant’s quality.7
  • It is slower than its parents. New leaves with little chlorophyll cannot pull their weight while they are pale, so the cultivar grows more slowly than either species behind it7 — do not expect hybrid vigour. Mature leaves still reach thirty centimetres.
  • The lobes arrive with maturity. Juvenile leaves are far simpler than the five-lobed shape the plant is sold on, so a young one looks like a different and much duller plant. Give it something to climb; that is the general rule for climbing philodendrons rather than a measured fact about this one.
Light
Bright indirect, and genuinely tolerant of medium light: they hold on at very low levels, but leaf size and colour need a few times more than that. The velvet-leaved species burn in direct sun more readily than the glossy climbers do.
Water
Keep evenly moist without being wet. Water when the top 2-3 cm has dried; the thinner-leaved species wilt visibly and recover quickly, which makes them easy to read.
Humidity
50% is enough for most. The velvet-leaved species want 60-70% and show it immediately when they do not get it.
Temperature
64-81 °F (18-27 °C). Growth stops around 59 °F (15 °C), and chilling damage starts below about 50 °F (10 °C) without any frost.
Substrate
Airy and bark-heavy for climbers; a slightly finer mix with more coir for the crawlers, which root along the surface rather than down.
Fertilizer
A balanced feed at half strength every third watering in growth. Velvet-leaved species are sensitive to over-feeding — the leaf edges go first.
Propagation
Node cuttings for climbers; for crawlers, cut the rhizome between leaves leaving at least one node and one root per piece.
Dormancy
None, but growth slows in winter. Reduce water and stop feeding.
Common problems
  • Yellow leaves with brown wet spots are overwatering; yellow with crisp edges is dry air or underwatering
  • Velvet-leaved species mark if water sits on the leaves
  • Long gaps between leaves and small leaf size mean the plant wants more light or something to climb
  • Thrips are the usual culprit behind stippled, silvery new growth
  • Yellow lesions in a mosaic pattern are a virus: no cure, isolate or discard
  • Every part carries calcium oxalate crystals: the sap irritates skin, and a chewed leaf burns the mouth. Poison-centre records show it is rarely worse than that, but keep it away from pets and children anyway