Why Your Hebe Is Not Flowering

Last Updated on August 16, 2022 by Stephanie

The main reason for a hebe that is not flowering is due to pruning improperly. If hebes are cut back too much or in the wrong time of year , you could remove the growth from which the hebe flowers, and the hebe might not bloom until the next year.

To stimulate your hebe to bloom, place it in full sun in a well-drained soil supplemented with a significant amount of compost. Then, trim it slightly straight after blooming (note that pruning every year is not required in all cases.).

A high concentration of nitrogen may hinder hebes from flowering due to fertilizer or manure for altering soil.

Read on to find out the reason behind your hebes flowers to not bloom and how you can make sure you have a beautiful flower display the next season…

Excessive Pruning Can Prevent Hebe Flowering

The most frequent reasons for hebess inability to flower is due to:

  • Pruning the hebe too much into the old growth.
  • Pruning hebes in the wrong season.
  • Hebes that are not pruned for long periods of time, they become more woody and less productive, with less flowers.

Hebes are easy to grow low-maintenance plants that prefer not to receive excessive attention.

But they require particular attention when it comes to pruning.

Pruning too tightly to the old woody growth could stop the hebe from blooming next year.

After a tough cut, the hebe is likely to die or may stimulate new growth during the summer months with flowers or no blooms, based on the extent to which it was cut.

Hebes must be cut right after blooming. If you prune to late during the autumn or the spring, you could take away the growth that the hebe is supposed to display its flowers.

Its not necessary to trim hebes each year like roses, for instance. However, when you let hebes develop for a long time without pruning, they will become less slender, and ineffective as regards the foliage and flowers.

Pruning Hebes to make flowers The most effective way to trim your hebe to ensure that it maintains its good shape and blooms in late Summer or fall is to gently cut it back straight after it has bloomed.

Cut back the green, pliable growth, which is more flexible and do not cut the wood.

This allows the hebe to recuperate from pruning prior to winter and also lets the plant grow new growth in the spring unaffected, so it is ready to show its blooms in the summer.

If you missed the ideal time to prune Hebes (straight after the flowering) then Id suggest not to cut your hebe until it will flower next summer.

Hebe flower

While annual trimming of hebes isnt always necessary, its not recommended to ignore them for too long since they may become into a woody, unproductive plant that results in less flowers.

After theyve become into a woody, overgrown hebe, it becomes difficult to resurrect the Hebe.

Some hebes will tolerate pruning hard to the wood in order to create an improved shape. They can also develop new growth, and then bloom once the plant has recovered, but this could pose a risk since hebes prefer a less frequent and a more gradual method of pruning.

Hebe Not Flowering After Planting

Hebes dont necessarily bloom to their full potential during the summer after they have been planted.

Hebes that do not flower after plantation could be due to:

  • Transplant shock is a possibility since there could be a difference in the conditions of when the Hebe is grown in comparison to the conditions in your yard.
  • Hebes require time to settle in the new soil, even in the best conditions. Hebes tend to channel their energy towards growing roots that are acclimatising to conditions, rather than flowering the first year.

Theres nothing that you could do in order to advertise flowers other than to keep them for a year while the hebe adjusts to its new environment, but adhering to the most effective practices of treatment, will help reduce any shock that may occur during a transplant:

  • The Hebes regularly as often as is necessary to ensure an evenly humid (but but not totally saturated) soil during the initial year of plantation to prevent the plant from drying out while the roots have established and grew within the soil.
  • Add compost prior to planting. Add mulch on top of the hebe in order to increase nutrients and preserve the moisture (leaf mould or compost is a great material for mulch).
  • Hebe plants should be planted in a sunny place with a well-drained soil (avoid the boggy and heavy clay areas).
  • Do not prune in the first year.

If you follow the correct care methods and a bit of patience, the hebe will bloom well one year after the planting date once it has grown more.

Insufficient Light to Flower (6plus hours of sunlight is ideal)

Hebe is a tough and adaptable perennial flowering plant with the same requirements as Mediterranean plants. It prefers open spaces with full sunshine and at minimum six hours of sunshine in summer being ideal for an impressive display of flowers.

But they are able to endure and bloom with less hours of sunshine, but the less sun there are and the lower the energy that the plant needs to show flowers during the summer.

If the hebe is situated in too much shade, then there will likely be less growth of the stems foliage and flowers.

To give your hebe more light and to increase the amount of flowers in your hebe Try cutting back any branches that could be creating shade, or remove foliage that is close by plants that could be overtake the Hebe.

If the Hebe has been in complete shade, it is recommended to move it Hebe to a sunny location or else the plant isnt likely to bloom to its potential.

Transplant hebes in the Spring or Fall to allow the plants roots to establish in the soil without having to contend with full sun and the heat of Summer.

Make sure that the garden soil is draining well and amend the soil with compost prior to planting to ensure that the plant is well-nourished and also to retain the moisture since the plant could be more susceptible to drought right following the planting.

Hebes may not bloom at its most beautiful next year due to the fact that it takes time to adapt to a new place however, it will flower extremely well in the years following when it is adjusted to its new home.

Heavy Clay Soil Can Impact Flowering

Hebes may struggle to bloom when they are planted in clay soil due to:

  • Clay soils can drain slowly which creates boggy conditions and increases the risk of root rot.
  • Clay may bake hard and become too compacted for the hebes roots to develop and grow.

If the hebe must fight with clay that is compacted to a heavy soil , or boggy environments, it will likely be too stressed to show flowers.

Avoid the planting of hebe in clay by planting it in pots or containers, or in raised beds instead of garden boards.

It is however feasible for the Hebe plant to develop in clay soil when you dig an extensive hole to plant and then add lots of compost to improve soil drainage and structure, making conditions more favorable for the Hebe.

The bigger the area is amended with compost, the more hebe will develop and bloom, so long as the soil remains evenly moist and not boggy.

Too Much Fertilizer for Flowering

If you apply fertilizer frequently or in excessive amounts to hebes, they will produce a lot of lush foliage as well as new stems (that may become downhill) but with less flowers.

Hebes arent particularly heavy feeders and dont require regular fertilization to bloom in their prime. An excess of nutrients (Nitrogen in particular) can prevent your hebe from flowering.

Hebes that are planted in soil that is well-prepared with lots of organic matter and receive occasional mulch in the spring, dont require fertilizer to bloom.

They usually flower more effectively in soil that is well drained and not too high in nutrients.

If youve added organic fertilizer which is rich in nitrogen (poultry manure) reduce the fertilizer use and wait until next years season for the nitrogen content to drop so that your hebe can bloom correctly, but in the meantime, enjoy the lush green leaves!

Applying a tomato feed on the ground around your Hebe (which includes potash that aids in the growth of flowering) in spring will help to balance the nutrients in the soil to encourage blooming.

Key Takeaways:

  • Hebes inability to blooming is usually due to pruning in an inappropriate time in the the year. If you prune hebes in spring, you will take away the growth that the flowers of hebes are displayed. Hebes dont bloom when they are not in full sun and have well draining soil.
  • Hebes typically do not bloom during the time following they are planted because the energy is diverted from flowering to developing roots and growing.
  • Hebes require well-drained soil, and they do not thrive well in compacted slow draining clay soils. Add compost to improve drainage and the structure of the soil.
  • In excess nitrogen, either as a result of fertilizers with high concentrations or due to the use of manure for mulch , or as soil amendment could cause the hebe to develop leaves with a only a few flowers.


Went from an inexperienced gardener to a half-decent one over 10+ years. I cover anything from general indoor plant guides and lawn care, to succulents and flowers. Super happy to share my tips and tricks with you :)