Overlapping Aglaonema 'Diamond Bay' leaves with pale silver centres and dark green borders

Upright Aglaonema 'Diamond Bay' in a black pot, showing several stems and silver-green leaves

Potted Aglaonema 'Diamond Bay' with a loose fan of narrow silver-grey and green leaves

Three Aglaonema 'Diamond Bay' plants in black pots, showing their silver-centred leaf patterns

Aglaonema 'Diamond Bay' in a black nursery pot with several shoots and wide silver-centred leaves

Aglaonema 'Diamond Bay' foliage viewed from above, showing silver-centred leaves in a dense cluster

Young Aglaonema 'Diamond Bay' in a small black pot with upright silver-and-green leaves

Elongated Aglaonema 'Diamond Bay' leaf with a pale silver centre and deep green margins

Full Aglaonema 'Diamond Bay' in a black nursery pot, with broad silver-centred leaves

Potted Aglaonema 'Diamond Bay' with green-edged silver leaves rising from a clustered base

Aglaonema 'Diamond Bay' viewed from above, with patterned leaves spreading around a black pot

Araceae

Aglaonema 'Diamond Bay'

Chinese Evergreen

A solid grey-green centre fills each broad leaf of Aglaonema ‘Diamond Bay’, inside an irregular dark-green border. Basal branches form a compact clump.

Read full guide to Aglaonema 'Diamond Bay'

€18,25

VAT included · plus

Choose a size

M Pot Ø 14 cm · approx. 35 cm tall L Pot Ø 17 cm · approx. 50 cm tall

Variant

Sizes are approximate. Height is measured from the bottom of the pot to the top of the plant; diameter at the widest point.

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Care at a glance

Aglaonema 'Diamond Bay'

Light

Bright indirect • approx. 10,000–20,000 lux

Watering

Water when ~40–60% dry

Substrate

Aerated • Moisture-buffered • Balanced organic + mineral • Medium

Temperature

Ideal: 18–27 °C • Avoid below: 16 °C

Humidity

Elevated 50–60%

Growth habit

Upright clumping herbaceous perennial.

Support

not needed

Growth speed

Average

Cultivated size guide

Height: 80 cm • Spread: 80 cm

Origin & habitat

Stable mutation of Aglaonema ‘Silver Bay’, selected in the University of Florida breeding programme at Apopka, Florida

Outdoor growing

Outside from 15 °C · sheltered spot

How to read these values

These care values give practical guidance for growing the plant. Adjust care for pot size, substrate, temperature and how quickly the substrate dries.

For more detail, read the full product description or visit our Plant Care Guides.

Light: level and approximate lux at leaf level.
Watering: “% dry” shows how far the substrate should dry before watering again.
Substrate: structure, drainage, moisture retention, base material and particle size.
Temperature: “Ideal” shows the preferred range; “Avoid below” marks the cold-stress threshold.
Humidity: target range; steady conditions usually matter more than exact numbers.

Growth habit: how the plant grows, such as upright, climbing, trailing, clumping or rosette-forming.
Support: whether a stake, pole or trellis is needed, optional or unnecessary.
Growth speed: expected pace under suitable growing conditions; use as a guide, not a promise.

Cultivated size guide: approximate dimensions for an established plant in the stated growing context. Height is measured upwards from the growing surface; foliage height excludes flower stems. Trailing length follows a stem, while foliage drop is the vertical distance from the crown to the lowest leaf tips. Spread is the width of the leafy plant or crown, not an individual leaf. Flowering height includes the flower stems. A container guide applies to pot-grown plants; an in-ground guide applies to plants rooted in the ground. Size also depends on age, conditions, pot space and training.

These figures do not describe the size supplied and are not fixed upper limits.

Toxicity & safety: irritation, toxicity or physical hazards such as spines or bristles.
Origin & habitat: native range, hybrid background or typical habitat where relevant.
Outdoor growing: when a potted indoor plant can be placed outside and what outdoor protection it needs.

Aglaonema ‘Diamond Bay’

Several shoots give Aglaonema ‘Diamond Bay’ an upright, well-filled shape. Its broad leaves curve gently away from the centre on yellow-green stalks. These wrap closely around the stems, so very little bare cane shows between the leaves.

A wide silver-grey band runs along the centre of each mature leaf, almost from base to tip. Darker green surrounds it on both sides, with an uneven line where the two colours meet. The leaves are plain green underneath.

Key features of ‘Diamond Bay’

Large grey-green central zone occupying slightly more than half of the blade.
Irregular dark green border around the pale centre.
Mature leaves about 28–30 cm long and 10–12 cm wide.
Yellow-green petioles and uniformly green leaf undersides.
Moderate basal branching and a relatively compact habit.

Origin & background

Selection history of Aglaonema 'Diamond Bay'

Aglaonema ‘Diamond Bay’ arose as a stable mutation among tissue-cultured Aglaonema ‘Silver Bay’ plants in the UF/IFAS foliage breeding programme at Apopka, Florida. It was multiplied vegetatively and kept its solid grey-green centre, dark-green border and compact branching. Richard J. Henny, Jianjun Chen and David J. Norman published the cultivar account in 2003.

Plant care

Growing Aglaonema ‘Diamond Bay’

Light: Medium indirect light is suitable, and the cultivar can also grow under lower interior light. Expect slower growth and smaller leaves in darker conditions; keep direct sun off the broad pale centres.
Temperature and humidity: For steady growth, hold temperatures near 18–27 °C and protect the plant from prolonged conditions under 16 °C. Humidity around 50–60% supports steady growth.
Watering: Wait until the mix has partly dried and the pot feels lighter, then water the full root ball. Several shoots can make the root ball dense, so check below the surface before watering again.
Potting mix and repotting: Combine a base mix that holds some moisture with bark and perlite or pumice. Move to a slightly larger pot when the roots are crowded and need more space. Keep the clasping leaf bases at the same level after repotting.
Feeding: Feed lightly while new foliage is forming, and reduce the strength when growth slows. Excess soluble salts can damage leaf tips and margins; rinse the mix with plain water periodically and let it drain completely.
Leaf care: Remove only fully yellow leaves and support the broad leaves during cleaning to avoid pressure damage.
Propagation: Divide rooted shoots that form at the base during repotting or root healthy stem sections in warm, open potting mix.

Issues & solutions

Aglaonema ‘Diamond Bay’: problems and solutions

Persistent wilting or several yellow leaves: A single old lower leaf may yellow naturally. If several leaves yellow together or the plant wilts, check moisture throughout the root ball and any recent cold exposure. If the mix stays wet, let it drain and inspect the roots if decline continues. Preserve every firm root. With disinfected scissors, cut only clearly soft, hollow or rotten parts back to firm tissue and discard the decay. Replace collapsed mix with fresh, airy substrate when needed. See the root-rot guide. If the root ball is very dry, rewet it thoroughly; after chilling, restore stable warmth. The yellow-leaf guide explains other causes.
Dry tan patches in the pale centre: Strong direct light or heat through glass can scorch the broad central field. Move the plant into filtered light and judge recovery by clean new leaves.
Dark greasy patches after cold exposure: Chilling injury may appear after a delay. Restore stable warmth, keep the plant away from cold glass and remove tissue only after the damage has stopped changing.
Soft insects and sticky residue appear on young leaves: Soft-bodied insects and sticky residue on young growth indicate aphids. Isolate the plant and rinse off the colony, then use a treatment labelled for aphids only on plant parts permitted by its label. Treat tender developing leaves only if expressly authorised. Repeat it at the intervals stated on the label for the full course, and continue checking until fresh growth stays clean.

Safety

Aglaonema ‘Diamond Bay’ is toxic to people and pets

Keep this plant away from children, cats and dogs.
Its leaves and stems contain insoluble calcium oxalate crystals, which can irritate the mouth, throat, skin and eyes.
Chewing may cause burning pain, drooling, swelling, vomiting or difficulty swallowing. Contact a veterinarian or medical professional after exposure, especially if swelling or breathing problems occur.

Names & etymology

Who first published Aglaonema, and what does the name mean?

Aglaonema combines Greek aglaos, meaning shining or splendid, with nema, meaning thread or filament.

Heinrich Wilhelm Schott established the genus Aglaonema in 1829 in Wiener Zeitschrift für Kunst, Literatur, Theater und Mode, volume 1829, page 892.

Plant names, growth habits, natural habitats and indoor care guidance are checked against trusted botanical, habitat and horticultural references before publication.View our plant care resources and references.