beardtongue
Penstemon digitalis 'Onyx and Pearls'
Cycle:
Herbaceous Perennial
Watering:
Minimum
Propagation:
Seed Propagation
Hardiness Zone:
3 - 8
Flowers:
White Flowers
Sun:
Full sun Partial sun
Soil:
Loamy
Fruits:
purple,white Fruits In Autumn Ready In Fall
Leaf:
Yes
Growth Rate:
High
Maintenance:
Moderate
Drought Tolerant:
Yes
watering
Beardtongue (Penstemon digitalis 'Onyx and Pearls') should be watered regularly during the growing season but take care not to overwater it. In general, aim to water twice a week for a mature plant, and every 3-4 days for young plants. Make sure the soil is dry between waterings, and water deeply to encourage strong root systems. If temperatures are high, the frequency of watering can increase. During the winter months, water sparingly and only when the soil begins to dry.
sunlight
Beardtongue (Penstemon digitalis 'Onyx and Pearls') is best grown in full sun, which means 6 or more hours of direct sunlight every day. When it's in full sun, this plant will produce an abundance of pink and white flowers and stay strong and healthy all season long. When planting in a more shaded location, the flowers might not be as plentiful, so it is best to provide as much sunlight as possible. During the summer months, when sunlight is plentiful, it is best to give beardtongue direct sun all day long; however, as the days become shorter in winter, it's okay to give it some light shade in the morning and full sun during the afternoon.
pruning
Beardtongue (Penstemon digitalis 'Onyx and Pearls') is a low-maintenance, drought-tolerant, perennial plant that does best with a yearly pruning. Pruning can be done at the end of the season, usually in late summer, when the plant has finished flowering. During this pruning session, all dead, diseased, or damaged stems should be removed first. Cut the remaining stems down to the base of the plant to encourage new growth the following season. It is important to note that while regular pruning is beneficial, this particular species of Penstemon requires minimal pruning and no more than 10-15% of existing stems should be pruned per year.