Philodendron hastatum 'Silver queen' ('Silver Sword')

Philodendron hastatum 'Silver Queen' ('Silver Sword')

Philodendron hastatum 'Silver Queen', also known as 'Silver Sword' in the hobby, is a silver-leaved climbing Philodendron with arrow-shaped juvenile foliage and a metallic silver-green to blue-silver surface. The leaves are smooth, pointed and narrow at first, then can lengthen into a more spear-shaped outline as the plant climbs.

The species Philodendron hastatum is native to south-eastern Brazil, where it grows as a climbing aroid in wet tropical conditions. In cultivation, 'Silver Queen' needs a warm position, an airy root zone and a firm vertical surface so the stem can lengthen without collapsing under its own weight.

Philodendron hastatum 'Silver Queen' silver foliage and climbing growth

• Foliage: Metallic silver-green to blue-silver leaves with a smooth surface.
• Leaf shape: Juvenile blades are arrow-shaped and can become longer and more spear-like as the plant matures.
• Growth habit: Climbing Philodendron with nodes and aerial-root growth along an elongating stem.
• Support: A pole, plank or board helps the stem stay upright as the leaves lengthen.
• Indoor character: A fast, vertical-growing aroid with a clear silver foliage effect.

Care for Philodendron hastatum 'Silver Queen'

Philodendron hastatum 'Silver Queen' grows best with bright filtered light, steady warmth and a chunky substrate that does not stay dense around the roots. Good stem support matters early, because the plant climbs from node to node and the silver leaves become more impressive when the growth stays upright.

• Light: Place Philodendron hastatum 'Silver Queen' in bright filtered light. Harsh direct sun can scorch or dull the pale silver leaf surface.
• Water: Water when part of the potting mix has dried, then let excess water drain fully.
• Humidity: Moderate to higher humidity helps new leaves expand smoothly on active climbing stems.
• Temperature: Keep warm and stable, ideally above 18 °C, and avoid cold draughts or cold wet substrate.
• Substrate: Use a chunky, fast-draining aroid mix with bark, mineral particles and enough air space around the roots.
• Pot choice: Use a pot that drains freely and can hold the support securely without tipping.
• Repotting: Repot when roots fill the pot, the substrate breaks down, or the support no longer sits firmly.
• Fertilising: Feed lightly during active growth with a balanced houseplant fertiliser at diluted strength.
• Growth rate: Growth is usually moderate to fast indoors when warmth, light and root aeration are stable.

Philodendron hastatum 'Silver Queen' pruning, propagation and mineral substrates

• Pruning: Remove damaged leaves or cut back a long stem above a node if the plant needs reshaping.
• Propagation: Propagate from stem cuttings with at least one node and healthy aerial-root tissue.
• Semi-hydro: Suitable for mineral or semi-hydro substrates if roots are kept warm, oxygenated and not stagnant.
• Training: Tie or guide young stems before the internodes harden, so the plant climbs cleanly from the base.

Philodendron hastatum 'Silver Queen' leaf marks, long internodes and pests

• Long gaps between leaves: Move closer to brighter filtered light if the stem stretches and the leaves stay small.
• Yellow lower leaves: Check for wet, compacted substrate or a pot that stays damp for too long.
• Brown patches: Direct sun, dry roots or physical leaf damage can mark the silver surface.
• Root issues: Slow growth with soft stems or yellowing leaves often points to poor drainage or cold wet roots.
• Pests: Check new growth, leaf backs and petioles for thrips, spider mites, mealybugs and scale.

Philodendron hastatum 'Silver Queen' toxicity

The leaves and stems of Philodendron hastatum 'Silver Queen' contain insoluble calcium oxalate crystals and should stay out of reach of pets and children.

Philodendron hastatum name origin and publication

Heinrich Wilhelm Schott described the genus Philodendron in 1829 in Wiener Zeitschrift für Kunst, Litteratur, Theater und Mode. The name comes from Greek philo- or philein, meaning loving, and dendron, meaning tree. Philodendron hastatum was described by K. Koch and Sello and published in Index Seminum in Horto Botanico Berolinensi 1854(App.): 7, issued in 1855. The species epithet hastatum means spear-shaped or armed with a spear.

With its blue-silver leaves and climbing growth, Philodendron hastatum 'Silver Queen' is a strong choice for a vertical aroid display.