Clematis × cartmanii 'Joe'
clematis (Group 1)
- Position: full sun
- Soil: fertile, well-drained, neutral soil
- Rate of growth: average
- Flowering period: April
- Flower colour: pure white
- Other features: ideal container plant
- Hardiness: frost hardy (will need winter protection)
A profusion of small, waxy, pure-white flowers on purple-tinted stems appear in April amid finely cut, deep green leaves. This dwarf, evergreen clematis requires a sunny site and protection against frosts. In all but the warmest areas of the country it's best grown in a conservatory or cool greenhouse in a large patio pot.
- Garden care: No routine pruning is necessary. If the spread of the plant needs to be restricted prune immediately after flowering, cutting back overlong shoots to healthy buds. Apply a slow-release balanced fertiliser and a mulch of well-rotted garden compost around the base of the plant in early spring.
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Q:clematis bosrank cartmanii joe,how long does it take to grow to full sizeAsked on 4/9/2013 by bosun from thanet
The growth rate is largely determined by external factors, such as the available water, light and nutrients the plant receives, but as a very general guide, I would say that as it is a reasonably fast grower, it will reach maximum height in around 3 years.Answered on 4/9/2013 by Helen from Crocus
Q:Advice on climbers please
Hi, I need to find climbing plants for the length of a 2m high wood panel fence with concrete posts. I haven't measured the entire length but I would estimate around 15m. It is South facing and on a side of the garden that gets a lot of sun in the summer, the soil is clay and tends to dry out. I have no idea how many plants I would need to cover the entire fence (I am notoriously bad at judging the spread of a plant and always end up with an overcrowding problem). I am looking for something to deter anyone from climbing over the fence, yet ideally something that won't be treacherous to deal with myself (if such a plant exists!). Climbing roses are the first to spring to mind and if I were to go down that route I would definitely opt for white or cream flowers. I have had a look at the white climbing roses on your site but am unsure whether they will be happy in our soil, as you specify 'moist, well-drained' humus rich soil. I would also like to get an evergreen climber for the rear fence (+/- 5m long). I am not concerned whether this flowers or not, and I am less concerned about this being a 'thief-deterrent'. The soil is the same,- lots of clay, which plants seem to like, but it is very hard to work with and dries out easily in the summer. Any advice gratefully accepted! Best regards, HeatherAsked on 3/12/2010 by Thuli
A:Hello Heather, Unfortunately there are no plants that will deter intruders without being difficult to deal with, and the best plants are those with thorns like the roses. It sounds like roses will certainly grow in your soil, but ideally you should dig in lots of composted organic matter and then make sure they are kept well watered in summer. It can be difficult to see a small plant and imagine how big it will grow to eventually, however we do give all this information on each plant card, which hopefully should help. You will find it just to the right of the pictures at the top of the pages. If you click on the following rose, you will see it has an eventual height and spread of 10 x 6 m http://www.crocus.co.uk/plants/_/roses/climber-rose/rambling-roses/climbers/rosa-filipes-kiftsgate/classid.1280/ while this one will only grow to 3 x 2m http://www.crocus.co.uk/plants/_/roses/climber-rose/climbers/climbing-roses/rosa-climbing-iceberg/classid.1181/ I would pick the one you like the look of and then you will be able to establish how many you need to fill your fence. As for the evergreens, if you click on the following link it will take you to our full range of evergreen or semi-evergreen climbers that will grow in clay soils, but the same rules apply re preparing the soil and watering. http://www.crocus.co.uk/plants/_/climbers/plcid.15/vid.9/vid.228/ I hope this helps. Helen Plant DoctorAnswered on 3/12/2010 by Crocus Helpdesk
Q:Winter flowering shrubs and climbers to plant with new hedge
Hello, I have newly planted a hedge (made up from Hornbeam, Rosa rugosa, Blackthorn, Cornus, Hawthorn and Hazel) about 50ft long. I have been told that if I was to plant amongst the hedge some winter flowering Clematis such as 'Wisley Cream' it would give some nice colour these bleak winter months when the hedge is bare of foliage. The hedge is south facing and although the ground is ???good??? heavy Cambridgeshire clay the hedge has been planted in a trench back filled with leaf mulch, chipped wood and spent peat. Although I have said about in-planting Clematis in the hedge, I am open to other plant suggestions if you have any. Regards TerryAsked on 12/31/2009 by Terry Allum
A:Hello Terry, If you click on the following link it will take you to all our winter flowering climbers - of which the Jasminum is tougher and more like a shrub. http://www.crocus.co.uk/plants/_/climbers/plcid.15/vid.204/ Alternatively, this link will take you to all our winter flowering shrubs. http://www.crocus.co.uk/plants/_/shrubs/plcid.1/vid.204/ I hope this helps. Helen Plant DoctorAnswered on 1/5/2010 by Crocus Helpdesk
Q:Climbers to cover a Pergola
Hello We are building a 13ft square x 8ft high pergola and want to have Clematis, with flower for most of the year, but also with vigorous growth to cover the roof of the pergola. What Clematis would you recommend or do I need to include climbers like Jasmine and Virginia Creeper to provide summer and autumn colour? Please advise PaulAsked on 11/3/2009 by Anonymous
A:Hello Paul, I'm afraid no single Clematis will flower throughout the year, however you can get different types to flower at different times of the year. As a very general rule the group 1 Clematis are early flowering, the group 2's mid and the group 3's late, so this will help you narrow down your selection. The following link will take you to the few evergreen Clematis, some of which are quite vigorous - you can see the eventual height and spread of each to the right of the photos once you open up each page. http://www.crocus.co.uk/plants/_/climbers/clematis/plcid.15/plcid.16/vid.24/ I hope this helps. Helen Plant DoctorAnswered on 11/4/2009 by Crocus Helpdesk
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