Philodendron 'Calkin's Gold' ('Goldiana', 'Golden spear')

Philodendron 'Calkins Gold' ('Goldiana', 'Golden Spear')

Philodendron 'Calkins Gold' has elongated green leaves broken by lime, yellow and golden marbling. New leaves can open especially bright, then deepen as the blade firms up.

The stems grow in a scandent, loosely climbing way, with nodes that can produce aerial roots when they meet a textured surface. A pole, plank or trellis can be added as the stems lengthen, while pruning above nodes encourages new growth from lower points.

Golden marbling on scandent Philodendron stems

• Foliage: Elongated green leaves with irregular lime, yellow and gold marbling.
• Growth habit: Scandent stems with visible nodes that lengthen as the plant matures.
• Leaf development: New leaves often open brighter, while older leaves can settle into stronger green.
• Stem behaviour: Nodes can produce aerial roots as the stem extends.

Indoor stem growth and leaf colour changes

Philodendron 'Calkins Gold' grows from node-bearing stems with aerial roots and elongated patterned leaves. As the plant extends, older leaves may become greener while newer leaves show stronger yellow and lime tones.

Dense wet mix can damage roots, while dry pockets, harsh sun or pests often show as stalled stems, smaller leaves or brown marks on yellow tissue.

Light, moisture and support for Calkins Gold

• Light: Give bright indirect light, around 10,000–20,000 lux; pale yellow tissue marks easily in harsh direct sun.
• Watering: Water when the upper 30–50% of the mix has dried, then let excess water leave the pot.
• Substrate: Use a chunky aroid mix with bark, coco chips or fibre, perlite or pumice and a small moisture-holding fraction.
• Drainage: Keep the potting mix airy and use a pot with drainage holes, as dense wet substrate can weaken roots and soften lower stems.
• Humidity: Aim for 50–70%, especially while new leaves are expanding from the sheath.
• Temperature: Keep at 18–28°C; cool wet roots below 15°C can damage roots, cause yellow lower leaves and slow new growth.
• Support: Add a pole, plank or trellis as stems lengthen, then tie stems loosely near the nodes.
• Feeding: Feed lightly during active growth with diluted fertiliser rather than strong occasional doses.
• Repotting: Repot when roots fill the pot, the plant dries much faster than before, or the support becomes unstable.
• Pruning: Cut above a node to shorten leggy stems or encourage fuller growth from the remaining stem.
• Semi-hydroponics: Can adapt to airy mineral substrates if roots are cleaned carefully and the stem base stays above the wet zone.
• Propagation: Root warm, humid stem cuttings with at least one healthy node; leaf-only cuttings cannot regrow into a full plant.

Brown patches, long internodes and pest checks

• Brown marks on yellow sectors: Check for direct sun, dry root pockets or damage during unfurling; move the plant into filtered light and stabilise watering.
• Smaller new leaves: Usually points to low light, weak roots, low nutrition or leaning stems.
• Yellowing lower leaves: Inspect the root ball and pot drainage, especially if the plant has been kept cool.
• Long gaps between leaves: Improve light and tie the stem to a pole, plank or trellis while the next leaves develop.
• Sticky residue or pale speckling: Check petioles, nodes and leaf backs for scale, thrips or spider mites.

Toxicity and calcium oxalate

Philodendron 'Calkins Gold' is toxic if ingested. Like other Philodendron plants, it contains insoluble calcium oxalate crystals that can irritate the mouth, lips and throat. Keep it away from pets and small children, and wash hands after pruning or handling cut sap.

Philodendron genus and Calkins Gold names

Philodendron belongs to the Araceae family. The genus name comes from Greek roots meaning “tree-loving”, a reference to the climbing or tree-associated growth seen in many Philodendron.