Pelargonium 'Crystal Palace Gem', introduced in 1869, is a showy, long‑blooming pelargonium with round chartreuse leaves with a mid‑green center and salmon‑red flowers. Named for Joseph Paxton’s Crystal Palace, it performs from spring until frost.
Full sun; lean, gravelly, well‑drained soil. Regular watering; organic fertilizer at planting, weak nitrogen‑rich liquid feed every 2–3 weeks. Overwinter potted plants in bright, unheated greenhouse or cool kitchen window.
From cuttings. Problems: thrips, spider mites, mealybugs, caterpillars, gray mold, mildew, black leg, flower break virus, Xanthomonas blight, edema.
Beds, borders, containers; cottage garden style.
| Height | 1–3 ft. |
| Spread | 1–3 ft. |
| Growth Habit | Clumps |
| Light | Full Sun |
| Moisture | Medium |
| Maintenance | Moderate |
| Bloom Time | Spring to Fall |
| Flower Color | Red |
| Foliage Color | Variegated |
| Type | Perennial (often grown as annual) |
Weeping Katsura (Cercidiphyllum japonicum f. pendulum): A Compact, Fragrant Specimen
Dicentra 'King of Hearts': Long-Blooming Fern-Leaf Bleeding Heart
Disporum sessile 'Variegatum': Variegated Fairy Bells for Shade
Euphorbia 'Black Bird': Velvety Near-Black Foliage & Lime Green Bracts
Hellebore 'Ivory Prince' (Helleborus): Upward-Facing Early Spring Flowers
Heuchera 'Amber Waves' (Heuchera 'Amber Waves'): Lime Green Foliage with Rose Flowers
Tiarella 'Spring Symphony': Reblooming Foamflower with Dense Pink Blossom Spires
Brunnera 'Jack Frost': Silver-Variegated Foliage for Shade
Heuchera 'Green Spice' (Heuchera 'Green Spice'): Silvery Leaves with Purple Veins and White Flowers
Heuchera 'Plum Pudding' (Heuchera 'Plum Pudding'): Silvery Purple Foliage with White Flowers
Tiarella 'Black Snowflake': Foamflower with Dramatic Black-Veined Foliage
Tiarella 'Dark Eyes': Running Foamflower with Large Pink Blooms and Burgundy Centers
Tiarella 'Heronswood Mist': Clump-Forming Foamflower with Misty Pink-Cream-Green Foliage
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