Weston

Glandularia × hybrida

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From seed to harvest

Common nameVerbena
FamilyVerbenaceae
GenusGlandularia
Species× hybrida
CultivarGrandiflora
Typeflower
Botanical nameGlandularia × hybrida

Grandiflora Large-Flowered Verbena Mix Seeds (Glandularia × hybrida) Compact plants bear a mixed palette of large flowers through the warm season. This verbena mix colours low beds, borders and containers with flowers.

Start indoors 8 to 12 weeks before planting out; direct sowing is not recommended. Sow and cover lightly. Keep the seedbed evenly moist through emergence. Allow 45 to 60 cm between plants. Provide full sun and avoid standing water. A germination temperature of 16 to 30°C is appropriate for this crop. Thin crowded seedlings early and harden indoor-started plants gradually before transplanting.

Follow the harvest or flowering stage described for this reference. Grow for flowering displays and remove spent blooms as needed. Water regularly without saturating the soil. Use clean tools and remove damaged material. Adjust watering to rainfall, wind and actual soil moisture, and keep enough space for air circulation.

Light and life cycle

In the garden

Exposure
Sun to partial shade
Life cycle
Tender perennial grown as an annual
Sowing and germination

Sowing guide

Sowing & germination

Sowing depth

Cover lightly

Spacing / density

45 to 60 cm between plants

Germination temperature

16 to 30°C

Germination time

14 to 28 days

Sowing period

Start indoors 8 to 12 weeks before planting out; direct sowing is not recommended

Propagation

Seed

Growing method

Prepare a clean seedbed or containers with average, well-drained soil. Start indoors 8 to 12 weeks before planting out; direct sowing is not recommended. Sow and cover lightly unless the packet gives a more specific direction. Use the following spacing as the crop develops: 45 to 60 cm between plants. Keep the medium evenly moist during emergence without leaving it saturated. Provide full sun and good air movement. Thin crowded seedlings early so the remaining plants develop without unnecessary competition. Harden indoor-started plants gradually before transplanting them outdoors after the appropriate frost date. Water regularly without saturating the soil. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears. Always follow the packet information when a variety-specific direction differs from general guidance. A simple garden label makes the cultivar easy to identify from sowing through harvest or flowering. Check young plants frequently because small moisture or pest problems are easier to address early.
Soil and care

Soil and care

Soil & care

Watering

Water at the base and check root-ball moisture, especially after transplanting.

Soil type

Prepare soil for the flower’s needs, keeping the root zone well aerated.

Fertilization

Prepare the soil with mature compost when fertility is low. A light, balanced fertilizer may be used according to its label, but excessive feeding can cause weak or unbalanced growth. Observe leaf colour and plant development before adding more nutrients. Water after any application. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level.

Seasonal care

At sowing time, prepare average, well-drained soil and follow this timing: Start indoors 8 to 12 weeks before planting out; direct sowing is not recommended. Keep the surface moist until emergence, label the row, and thin seedlings according to the recommended spacing. During active growth, provide full sun and monitor soil moisture, weeds, and leaf condition. Water regularly without saturating the soil. In warm or windy weather, check containers and exposed beds more frequently. Remove damaged material and keep enough space for air circulation. At harvest or after flowering, use clean tools and clear unhealthy debris. Healthy residue may be composted where appropriate. At the end of the season, clean containers and tools, record useful observations, and store remaining seed in a cool, dry, dark place. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears. Always follow the packet information when a variety-specific direction differs from general guidance. A simple garden label makes the cultivar easy to identify from sowing through harvest or flowering. Check young plants frequently because small moisture or pest problems are easier to address early.
Growing in containers

Container growing

Container growing

Choose a pot that allows the clump to develop and keeps the flowers accessible.
Growth and harvest

Size, flowering & harvest

Mature height

13 to 15 cm (5–6 in)

Width / spread

25 to 36 cm (10–14 in)

Harvest

Follow the harvest or flowering stage described for this reference.
Garden companions

Garden associations

Companion plants & uses

Companion plants

Low foliage plants can complement the flowers when their light requirements are compatible.

Other recommended plants

Lupin Mix; Radicchio Mix; Snapdragon Mix

Garden use

Place ‘Grandiflora’ verbena where its mature size and need for full sun can be accommodated. Prepare average, well-drained soil and leave the recommended spacing so air and light reach each plant. It can be integrated into a vegetable bed, herb garden, ornamental border, or container according to its normal use. Keep paths accessible for watering, observation, and harvest or grooming. Group plants with neighbours that have comparable moisture needs, but avoid crowding that shades young growth. A labelled row or pot makes the cultivar easy to follow through the season. Rotate edible crops with unrelated botanical families when practical. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears. Always follow the packet information when a variety-specific direction differs from general guidance. A simple garden label makes the cultivar easy to identify from sowing through harvest or flowering. Check young plants frequently because small moisture or pest problems are easier to address early.

Frequently asked questions

Frequently asked questions

How should ‘Grandiflora’ verbena be sown?
Start indoors 8 to 12 weeks before planting out; direct sowing is not recommended. Prepare average, well-drained soil. Sow and cover lightly. Keep the seedbed evenly moist until emergence without saturating it. Label the row and provide full sun. Thin crowded seedlings so the final spacing follows this guidance: 45 to 60 cm between plants. If plants are started indoors, provide strong light and harden them gradually before transplanting outdoors at the appropriate time. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation.
Where should I grow Grandiflora Large-Flowered Verbena Mix?
Light: Full sun. Prepare soil for the flower’s needs, keeping the root zone well aerated. Light: Full sun. ‘Grandiflora’ verbena prefers full sun and average, well-drained soil. Choose a location that leaves enough room for 45 to 60 cm between plants. Avoid low spots where water remains after rain. In a container, use drainage holes and a clean growing mix. Observe how light moves across the space during the day, especially near buildings or taller plants. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears.
How should I water Grandiflora Large-Flowered Verbena Mix?
Water at the base and check root-ball moisture, especially after transplanting. Water regularly without saturating the soil. During germination, use a gentle spray or careful watering so seed is not displaced. After establishment, water at soil level when the surface begins to dry. Adjust frequency to rainfall, heat, wind, soil texture, and container size. Avoid standing water because roots still require oxygen. Morning watering can help foliage dry normally during the day. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients.
What maintenance does ‘Grandiflora’ verbena need?
Keep the planting labelled, weeded, and appropriately spaced. Check young plants regularly for wilting, chewing damage, discolouration, or crowding. Provide full sun and maintain the moisture pattern described for the crop. Use clean tools, avoid deep cultivation near established roots, and remove unhealthy debris. Apply any fertilizer or pest-control product only according to its label. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears.
How can ‘Grandiflora’ verbena flower well?
Flowering depends on sowing time, temperature, light, and normal plant development. Give ‘Grandiflora’ verbena full sun, suitable spacing, and steady care without waterlogging the roots. Avoid excessive nitrogen, which can favour soft foliage over flowers. Remove faded blooms when appropriate, or leave selected heads to mature when seed collection or wildlife value is desired. For best results, label the row and observe the plants regularly as conditions change through the season. Adjust watering to rainfall, wind, container size, and the actual moisture at soil level. Good air circulation and adequate spacing help foliage dry normally after rain or irrigation. Keep the growing area free of weeds that compete for light, moisture, and nutrients. Use clean tools for harvest and remove damaged plant material when it appears.

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