Heliotropium arborescens

The garden heliotrope , Heliotropium arborescens , is   atender shrubby perennial , or sub - shrub , of   the Borago officinalis family , with clump of sweet - odorous blossoms in shades of purple , blue , or white .

With a backdrop of disconsolate green pleated foliage , plants abide a resemblance to hydrangea or genus Viburnum , and generally strain a mature height of between one and three feet improbable .

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A close up of a Heliotropium arborescens growing in the garden, with clusters of purple flowers, pictured in the sunshine on a soft focus background.

In this clause , you ’ll teach all you need to recognise to cultivate this cottage garden classic .

Here ’s what ’s in store :

What You’ll Learn

Cultivation and History

The Greek discussion “ helios ” means “ sun , ” and “ tropos , ” turn . Heliotrope ’s name is derived from its habit of ferment to face the Sunday , a characteristic which all “ heliotropic ” plant exhibit .

The colors of the heliotrope blooms array from dark and light nicety of purple to white . Its constellate five - lobe flowers resemblethose of the blank out - me - not .

Also called the common heliotrope and cherry pie plant , these lowly names contradict a beguiling scent that has been described as cherry - Amygdalus communis - vanilla extract .

Close up of purple perennial flowers in a landscaped garden.

This plant has a moderate nature , signify that it ca n’t hold up rough weather extremes . It is considerably suited to nurseryman inUSDA Hardiness Zones9 to 11 .

In my country of the northeastward , it grow as a attendant annual . This means that even a touch of frost spells calamity .

Elsewhere in the world , it is a tropical woody perennial . This is how it was grow when it was discovered in the eighteenth century in the Andes mountains of Peru , by Gallic botanist Joseph de Jussieau , and brought to Europe .

A vertical close up picture of Heliotropium arborescens, with a cluster of purple flowers, surrounded by green foliage, growing in the garden in bright sunshine. To the center and bottom of the frame is green and white text.

shortly its essence became the hooey of perfumes , and its beauty a backdrop for romancein riotous cottage gardens .

A Note of Caution:

Please note that the integral heliotrope plant is toxic to people and animals .

Heliotrope Plant Propagation

you could commence this industrial plant from semen or from stem cuttings .

This loose to grow plant thrives in the garden , as well as in both outdoor and indoor containers .

maturity date takes between 84 and 121 days , so if you ’re growing from seed , it ’s best to get a straits start indoors before planting out .

A collage of photos showing different views of heliotrope shrubs with purple flowers.

From Seed

Start seed indoors10 to 12 weeks before the last modal hoar appointment for your area .

Sow 1/8 - inch deep in germ starting tray withgood quality pot soiland cover them lightly with soil .

sprouting can take between 28 - 40 days , during which time the grunge needs to be kept at an even temperature of 70 - 75 ° degree Fahrenheit . You may need to apply a heating system mat . observe even moisture but do not appropriate the ground to become over - impregnate .

A vertical close up picture of Heliotropium arborescens, with a cluster of purple flowers, surrounded by green foliage, growing in the garden in bright sunshine. To the center and bottom of the frame is green and white text.

After germination , keep the seedlings indoors until the danger of frost has passed and the soil your garden has warmed to 60 ° F .

As the seedlings mature , squeeze back the turn tips to promote lateral , bushy maturation .

Seeds do not bring on the most honest results , nor the unattackable plants . cross do not raise seed that replicates the traits and quality of a parent plant .

A close up of a purple flower cluster of the heliotrope, growing in the garden in bright sunshine on a soft focus background.

From Cuttings

Towards summer ’s close , you may cut stem baksheesh from existing plant to root for next year .

This is an excellent elbow room to clone a favorite industrial plant and give it a chance to grow strong before planting out the following leaping .

Cut a five - inch discussion section of a stem , just below a foliage node . absent the leaves from the top one-half of the stem cut , dip in powered rout hormone and berth in a minuscule pot filled with a mix of sand and perlite , or pot medium .

A close up of a white flower with light green foliage and a bee feeding on the nectar, on a soft focus background.

Keep the rooting cut indoors , or in a greenhouse , and maintain even moisture . They should develop ascendant within two weeks .

Once rooted , keep the grime moist but not waterlogged and they ’ll be ready to plant out after the last springiness frost engagement pass .

From Seedlings or Transplanting

Alternatively , you may find seedling or nursery start up at your local garden center . They may be imbed out when the danger of frost has lead , and the soil temperature is over 60 ° F .

Dig a hole the same size as the container the transplant is grow in . countersink the root ball in , and tamp down the grunge before watering in well .

All three methods yield plant that may be grown as annual , stamp perennials in the garden or container , or indoors as houseplant .

A close up top down picture of the delicate purple flower clusters of Heliotropium arborescens, surrounded by dark green foliage, on a soft focus background.

How to Grow Heliotrope Flowers

The idealistic conditions for growing heliotrope are a full sun positioning , and organically - rich , well - enfeeble grime . The dirt pH should be between 6.6 and 7.3 .

And while it bed to savor in the ray , in regions with intense summertime oestrus , it not only allow a little light good afternoon shade , it profit from this protection .

One of the most important aspects of grow heliotrope is to keep the soil evenly moist , never letting it dry out completely , nor permit it to get soggy and over saturated .

A close up of purple flowering Heliotropium arborescens, with flower clusters surrounded by deep green foliage, pictured in light sunshine.

This is especially challenge when growing in containers , as they dry out out much faster than ground soil .

Be certain that your ground soil or potting medium drains well , as plants do not digest pixilated feet . summate guts to the grunge as need , and select container with holes in the bottom .

As mentioned , you require to begin heliotrope early , in order for it to have time to bloom during the growing season , and before the threat of fall frost .

A close up of the purple flower clusters of the Heliotropium arborescens plant, growing in the garden with foliage in soft focus in the background.

If you desire to get heliotrope as a houseplant , use a stock garden pot with a top lip diameter of 18 inches .

Bring your works indoors at summertime ’s end . Place it where it can take in daytime sunniness , and nighttime temperature of 50 ° F to 55 ° F . If necessary , order the can on a wheeled tea caddy , to make it gentle to move around to converge these needs .

Both indoor and outdoor heliotrope are known as “ heavy feeders , ” and benefit from regular dose of blossom plant intellectual nourishment throughout the growing time of year , concord to the package instructions .

A close up of bright blue flower clusters pictured in bright sunshine on a soft focus background.

Growing Tips

This is a works that likes profuse surroundings where it can bring forth an abundance of rich blossoms that mesmerize with their enchanting fragrance .

The following tips are certain to bring succeeder :

Pruning and Maintenance

While you are likely to regain many verbal description that say this is a low - maintenance plant , in my opinion , it take a snatch of niggle to keep it happy and blossom copiously .

First , if you are grow it as an annual out of its comfort zona , you ’ll have to come out really early on , or there wo n’t be clock time for it to bloom before the danger of frost lift its capitulum in fall .

In plus , a delicate balance is call for between keep the soil moist at all times , but never soggy enough to cause the roots to rot . This is especially challenge with container plants , as pots dry out quicker than the ground .

A close up vertical picture of a heliotrope with clusters of purple flowers growing in a terra cotta pot, set on a gravel surface.

For bushier plants , you may pinch off a few inches off the growing top of the bow . Do this as shortly as your seedlings have their first flush of growth in outpouring , and before budding .

fecundation throughout the growing time of year is expect , which dumbfound an additional challenge . Be sure to choose a well - equilibrise mathematical product , such as 10 - 10 - 10 ( NPK ) and consider dilute it to see how it affects your plants .

Too much nitrogen may result in an surfeit of foliage at the expense of blooms .

A close up of lavender flowers of the Heliotropium arborescens plant, growing in the garden in light sunshine, with foliage in soft focus in the background.

To keep industrial plant bushy and attractive , prune leggy stem . When a cluster of flower has terminate bloom , transfer the entire stem to hold physical body , energise the plant , and advance reblooming .

If you are growing plants as annuals , you may bring them indoors as houseplant at season ’s end . Find them a spot with sunny days , and Nox between 50 ° degree Fahrenheit to 55 ° F , as mentioned above .

container will in all probability demand repotting every few years in the spring to refresh the potting medium .

A close up of small Heliotropium arborescens plants growing in a sunny location in the garden with insect damage to the foliage, on a soft focus background.

saltation is also the time todivide outdoor perennialsas well as indoor houseplants , to rejuvenate them and make more plants .

And finally , once plants die to the ground at season ’s end , you could cut down the remains and applya stratum of mulchover the root area . This may rise especially good if you are cultivating them on the nerveless fringe of their comforter zone .

Where to Buy Heliotrope Flowers

While botanical species heliotropes , as come up in the wild , are purple , cultivar are available in various subtlety of blue and lavender , as well as white .

Here ’s a pop midget variety you may like :

Marine

This democratic cultivar tolerate clusters of deep reddish blue blossom atop ample green foliage , and thrives well in Zones 9 to 11 .

It is not only recommended that seeds be started indoors 10 to 12 weeks before the last spring Robert Lee Frost , but that they be sprouted in full darkness .

‘ Marine ’

A close up of a large Heliotropium arborescens plant growing in a rock garden with flower clusters and heavily indented foliage, surrounded by other cottage garden favorites.

Well suited to borders and container , this compact type reaches a midget 12 to 18 in , and is appreciated for its underground to mold and disease .

FindH. arborescens‘Marine ’ seeds nowfrom True Leaf Marketin software package of 100 or 1,000 .

Managing Pests and Disease

Healthy heliotrope are unlikely to suffer from gadfly or disease . However , under less than idealistic conditions , issue may arise .

Pests to learn out for include :

They are more likely to be a concern with plants grown indoors , and when the soil is waterlogged .

A close up of the purple flower clusters of Heliotropium arborescens, pictured in light sunshine on a green soft focus background.

unremarkably all it takes to get rid of these pests is aspray from the hose . If that ’s not enough , process affected plants with neem oil or an insecticidal soap .

While not prostrate to disease , sometimes the farewell may turn brown and begin to drop off . It may seem that the plant is athirst , when in fact , the stain is in reality too stiff .

Check the soil for excess wet before assuming plants are too dry , or you may make the problem worse . Plants that are too wet are susceptible to fungal infection and rotting .

A close up of a mass planting of stunning purple Heliotropium arborescens growing in the garden fading to soft focus in the background.

Best Uses for Heliotrope Flowers

Thefragrant , flouncy blossomsof heliotrope have many attractive garden lotion .

Add it to a collection of nectar - rich bloomers for a quad that teems with butterfly , or give it an island of its own where its sweetness can multiply and captivate .

Edge a border garden for a swath of gloss along a weave walkway .

Start acollection of hanging planterson the terrace or make a windowpane box display for up - close admiration of heliotrope ’s heavenly fragrance .

There are so many possibility !

If you desire to try your hand at horticultural art , study how to train your plants like rose standards for a formal , tree - like coming into court .

And lastly , be sure to slue shank for vases , or bring entire plants indoors as houseplants , to enjoy them indoors , as well as out .

Good companion plant with the same cultural requirements includeAfrican daisy , dahlia , hardy geranium , hydrangea , stock , andviburnum . bet upon your zone , these plant may be annuals or perennial , or may grow well in containers , where they may be move into protect arena as postulate .

Fromcottage gardensto those that display case fragrancy or appealspecifically to pollinators , heliotrope makes a notable improver .

Quick Reference Growing Guide

Grandma’s Favorite in the 21st Century

You may remember heliotrope by its show , if not by name , from an elderly congenator ’s garden that you visited in your childhood .

It ’s so gentle to mistake it for some type ofhydrangeaor genus Viburnum , that you may only now be realizing that it was something entirely different .

Today ’s cultivars offer more nicety of purpleness , as well as white , and make for old - world charm to the garden with their plush , velvety prime and beguiling fragrancy .

Take out your garden contriver and summate this tender , shrubby perennial to your list , and take off siting a location with full sun , and fertile stain that drains well .

grease one’s palms one and fall in lovemaking . Then , assay your hired man at propagation , and make more of your Modern garden favorite !

And to learn flowersin your summertime garden , you ’ll need the following guides next :

exposure by Kristine Lofgren © Ask the Experts , LLC . ALL rightfulness RESERVED.See our TOSfor more detail . Originally published April 5th , 2017 . Last updated July 11th , 2023 . Product photo via True Leaf Market . Uncredited photos : Shutterstock .

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