Q: Why are the leaves on my Grace Ward Lithodora turning yellow?
A: Yellowing leaves (chlorosis) are most often caused by soil that is too alkaline . Lithodora requires acidic soil (pH 5.0-6.0) . In neutral or alkaline soil, the plant cannot absorb iron, leading to yellowing leaves and eventual decline. Test your soil pH. If it is too high, amend with sulfur or peat moss, or consider growing it in a container with acidic potting mix.

Q: How much sun does it need?
A: It performs best in full sun to partial shade. In cooler climates, full sun is ideal for the most abundant flowers. In hot summer climates, it benefits from afternoon shade to prevent leaf scorch and keep the foliage looking fresh.

Q: How much water does it need?
A: Lithodora prefers consistently moist, well-drained soil. It is not drought-tolerant and will suffer if allowed to dry out completely, especially in full sun. Water regularly, but ensure the soil is not waterlogged. A layer of mulch helps retain moisture and keep the shallow roots cool.

Q: Is it a good plant for a rock garden?
A: Yes, it is an outstanding plant for a rock garden . Its low, spreading habit, preference for sharply drained soil, and spectacular blue flowers make it a classic choice for tucking into crevices between rocks or allowing it to cascade over stone walls.

Q: How large does it get?
A: 'Grace Ward' is a low-growing ground cover, typically reaching only 6-12 inches in height . Its spread is slow to moderate, eventually reaching 2-4 feet wide over several years.

Q: Can I grow it in a container?
A: Yes, it can be grown in a container . This is actually an excellent way to ensure it has the acidic, well-drained soil it needs. Use a pot with good drainage and a well-draining, acidic potting mix (formulated for rhododendrons or azaleas). Container plants will need more frequent watering.