Nemesia Care Guide

By Jessica Mcnamara

Mar 10, 2021

Orange nemesia in gardening bedding

Welcome to your Nemesia care guide! Here you will find all of our Growers' knowledge of how best to look after your Nemesia, and what to do if you get stuck.


small plant

Plant name: Nemesia
Latin name: Nemesia Scrophulariacaea
Varieties included: Aroma Plums & Custard, Sunpeddle Plum White Bicolour, Sunpeddle Yellow White

Nemesia is a great garden plant to be used as edging to a flower bed. Their flowers have a hint of orchid in shape and structure and depending on colour they can sometimes be mistaken at a distance for lobelia. Bright yellow nemesia is our favourite!



Although originally from South Africa these plants do really well in slightly colder locations, but still in full sun.  When in full flower it can be difficult to see any foliage on the plant as the flower masses can cover the foliage almost completely.



Nemesia are a great plant to have with a lower growing habit.  Available in many colours they can be used to complement or add contrast to container based and border-based arrangements. 



During a hot summer Nemesia do well at both ends of the season. So carefully positioning them in garden beds and borders means they can provide colour at either end of the summer season to compliment other central summer flowering plants. 

Nemesia provides spectacular colour all summer long starting to flower in late May and lasting to late September or the first frosts. When temperatures are mild, the plant produces so many flowers that they almost completely obscure the foliage.



Nemesia are thought to represent friendship, and clearly are friendly to gardeners and other plant partners within the garden!



Bedding plants

Plant type: Bedding (annual)
Hardiness: Semi hardy
What does this mean? These need frost protection but frequently cling on with a lesser number of flowers into late autumn if frost free giving them a long flowering period. You should wait until the frost has passed to grow nemesias plug plants or flowering bulbs.


plant in soil

Before You Start

If you are planting in a garden container, make sure it is clean and has drainage holes in the base.  You will need a good quality compost, trowel, watering-can and gloves may also be useful. Make sure to leave space around the plant to allow it to grow into. Sing to your plant, it might help them grow, you never know!




plant in pot

Planting Guide

When planting directly into a bed or border it is often best to lay out your plants still in the pots so you can make sure you plant them in the best place to get the overall visual impact you are wanting. 



Once you have decided where the plant is going dig a hole a little bit bigger than the pot size in the bed / border. 



Next, take the plant out of the pot.  This can be done easily by squeezing the sides of the pot between your thumb and fingers, then releasing your grip on the pot.  This helps the roots come away from the pot. 

Then hold the plant by the base of the stem, close as possible to the pot and remove the plastic pot.  Hold your plant by the root ball and position in the middle of the hole.  

The top of the compost around the plant should be a little lower than the level of the bed / border.  If you need to dig a little deeper take the plant out and make the hole a bit deeper. 

Once the plant fits in the hole you can twist it around to get the best side of the plant facing forwards.  When you are happy with the position fill the hole back in around the root ball and firm the soil back in. 

Finally give the plant a good water, wherever possible trying to avoid getting water on the flowers.

Avoid planting during the hottest parts of the day in mid-summer.  Plants much prefer to be planted during the cooler part of the day as this reduces their stress levels. Nobody want to see a stressed plant, do they?!

sunny garden


Nemesia love sunbathing but also like cool temperatures. When they are in the warmth they will continue to flower, but at slightly less abundant levels.

Planting in garden containers or hanging baskets allows you to move them around to the plant’s preference. (They can be quite bossy you know!). Garden beds and borders gives them space to grow. Nemesia are perfect for the edges of borders. They prefer a free draining fertile soil to grow in.


watering can

Watering & Feeding Guide

They love a good water deeply when they are first planted. Keep the Nemesia moist but not completely saturated. They love being fed with multipurpose feed and will thank you for it by giving you a greater show of colour.

When in full flower fortnightly feeding is needed. If you notice wilting or yellowing leaves at the base, you seem to be overwatering, naughty you! Make sure you have well drained soil.

Soil type: Nemesia prefers neutral to slightly acidic soil.


Medium plant

Top Tips

Deadhead will promote further flowering.  As Nemesia are abundantly flowering this can be done quite severely taking back to almost half of volume of plant with shears. (Don’t be scared!) Ideally do this as the first flush of flowers have decayed going into mid-summer.  You will then get a second flush of flowering at the end of summer. 

Nemesia garden plants are perfect for large garden beds and borders as they provide a beautiful display of vibrant colour.

Great garden plant for beginners and grow very quickly making them perfect for the children’s growing garden.  

Brilliant for container gardening throughout the summer, and with favourable weather stretching well into Autumn (You’ll be lucky in Britain).