Begonia boliviensis Groovy Mellow Yellow F1 | Trailing Begonia

Begonia Groovy Mellow Yellow F1 is a beautiful trailing Begonia with large, single flowers in soft, luminous yellow tones. Its naturally mounded, semi-trailing habit creates a full and beautifully balanced plant that looks spectacular in pots, hanging baskets and mixed containers.

The Groovy F1 series is known as one of the most uniform seed-grown Begonia boliviensis series, combining excellent germination with reliable plant development and exceptionally uniform flowering.

Growing approximately 35 cm tall and 23 cm wide, Groovy Mellow Yellow develops into a compact yet vigorous plant with gently cascading stems. Its elegant habit allows the flowers to be beautifully displayed around the entire plant.

The combination of soft yellow flowers, abundant flowering and graceful semi-trailing growth makes this variety particularly attractive for terraces, balconies and bright summer container displays.

Plant Information

• Botanical name: Begonia boliviensis
• Common name: Bolivian Begonia / Trailing Begonia
• Variety: Groovy Mellow Yellow F1
• Flower colour: Soft yellow
• Flower type: Large, single flowers
• Growth habit: Mounded, semi-trailing
• Height: Approx. 35 cm
• Width: Approx. 23 cm
• Exposure: Sun to shade
• Crop time: Approx. 14–16 weeks
• Seed form: Pelleted seed
• Use: Pots, hanging baskets, mixed containers, bedding and landscape planting

Beautiful Soft Yellow Flowers

The main attraction of Groovy Mellow Yellow is its large, beautifully coloured single flowers.

The soft yellow colour has a fresh, luminous appearance that brings brightness to summer containers without appearing overly strong or harsh.

The flowers stand out beautifully against the fresh green foliage and are produced abundantly across the plant, creating a rich and elegant summer display.

Its gentle yellow colouring is extremely versatile and combines beautifully with white, cream, apricot, soft pink, lavender, blue and fresh green tones.

Mounded & Semi-Trailing Habit

Groovy Mellow Yellow develops a naturally mounded, semi-trailing growth habit.

The centre of the plant remains full and well-branched while the outer stems gradually cascade over the sides of the container.

This creates a beautifully balanced shape – fuller than strongly trailing varieties but with considerably more movement than traditional upright Begonias.

It is particularly attractive in hanging baskets and elevated containers, where the graceful stems and flowers can be fully appreciated.

Excellent for Hanging Baskets

Groovy Mellow Yellow is an excellent choice for hanging baskets.

Its semi-trailing stems gradually grow over the edge of the container, creating a soft cascade of foliage and yellow flowers without becoming excessively long or loose.

The naturally rounded centre keeps the basket looking full, while the flowering stems add movement around the sides.

For a more impressive display, several plants can be combined in a larger hanging basket or container.

Uniform Growth & Flowering

One of the most important characteristics of the Groovy F1 series is its excellent uniformity.

Plants develop evenly and flowering is very consistent across the series. This creates balanced containers where plants reach a similar size and begin flowering within a similar period.

The series is also valued for its high germination rate and reliable seedling performance, making it an excellent choice for growing Begonia boliviensis from seed.

Abundant Summer Flowering

Groovy Mellow Yellow produces numerous large flowers throughout the growing season.

Its many flowering stems create a rich display that becomes increasingly impressive as the plant develops.

With suitable light, regular watering and good growing conditions, the plants continue producing new flowers throughout summer, making them ideal for long-lasting seasonal container displays.

Growing from Seed

Groovy Mellow Yellow F1 is supplied as pelleted seed, making the naturally tiny Begonia seeds much easier to handle and sow.

Begonias require warmth, moisture and light during germination, so the seeds should remain on the surface of the growing medium.

For best results, start seeds indoors well before the outdoor growing season.

• Sow 1–2 pellets per plug or cell
• Place the pellets on the surface of moist growing medium
• Do not cover the seeds
• Light is required for germination
• Germination temperature: 22–23°C
• Germination time: approximately 7–10 days
• Keep the growing medium consistently moist during germination

Temperatures above approximately 27°C should be avoided, as excessive heat can inhibit germination.

Once seedlings have germinated and begun to establish, gradually reduce the temperature to approximately 20–21°C and provide good light and ventilation.

Light & Flowering

Groovy Mellow Yellow is a long-day Begonia.

A day length longer than approximately 13.5 hours encourages flower initiation. Good light and longer days also help plants develop more evenly and can promote earlier flowering.

When seeds are started during darker winter months, provide young plants with as much good-quality light as possible.

Once established outdoors, Groovy Mellow Yellow is adaptable and can be grown from sun to shade, making it suitable for many garden, terrace and balcony situations. Benary officially lists the series for sun-to-shade exposure.

Watering & Growing Conditions

Groovy Mellow Yellow prefers a high-quality, fertile and well-drained growing medium.

During germination, the substrate should remain consistently moist because young Begonia seedlings are extremely small and sensitive to drying out.

Once established, allow the surface of the growing medium to dry slightly between waterings.

Mature plants prefer a good wet-to-dry watering cycle rather than constantly saturated soil.

Avoid prolonged waterlogging and severe drying, particularly in containers and hanging baskets.

During warm summer weather, hanging baskets may require more frequent watering because the growing medium dries considerably faster than in garden beds.

Move plants outdoors only after the danger of frost has passed.

Perfect for Pots & Mixed Containers

With a mature size of approximately 35 cm high and 23 cm wide, Groovy Mellow Yellow is an excellent container plant.

Its semi-trailing habit softens the edges of containers while maintaining a beautifully full centre.

It can be grown individually in decorative pots or combined with other summer plants in larger mixed containers.

The soft yellow flowers combine especially beautifully with white, cream, pale pink, apricot, lavender, blue, burgundy and fresh green foliage.

For a soft romantic composition, combine it with white and blush tones. For a more contrasting summer display, pair its yellow flowers with lavender, violet or deep burgundy shades.

Beautiful in the Garden

Although especially attractive in containers and hanging baskets, Groovy Mellow Yellow can also be used in garden plantings; Benary includes bedding and landscape among its recommended uses.

Its combination of:

Large soft yellow flowers • Semi-trailing habit • Uniform growth • Abundant flowering • Compact size • Long summer display

makes it an attractive choice for raised beds, borders and decorative summer plantings.

In raised beds or along the edges of larger containers, the semi-trailing stems can gently cascade over the sides, displaying the flowers particularly beautifully.

Perfect For

Hanging baskets • Patio pots • Balcony containers • Mixed containers • Raised beds • Garden borders • Summer displays

Why Grow Begonia Groovy Mellow Yellow F1?

Beautiful soft yellow flowers • Large single blooms • Mounded semi-trailing habit • Excellent uniformity • Abundant flowering • High germination performance • Approx. 35 cm tall • Ideal for hanging baskets • Excellent container variety • Suitable from sun to shade • Long summer display • Professional-quality pelleted seed

Begonia Groovy Mellow Yellow F1 (Begonia boliviensis) is an excellent choice for anyone looking for an elegant trailing Begonia with large, soft yellow flowers and a graceful semi-trailing habit. Its combination of luminous colour, uniform growth, reliable flowering and gently cascading stems makes it particularly beautiful in hanging baskets and containers.

Easy to combine with other summer plants, Groovy Mellow Yellow brings light, freshness, abundant flowers and graceful movement to balconies, terraces and gardens.