Those mandevillas are glorious! I have never had any luck propagating them, but mine always seem to come back in the late spring. Just about the time I have given up on them, they start sprouting. Last year, I discovered they make tubers kind of like sweet potatoes. i tossed one in my compost pile and it started growing. At the end of the season, rather than trying to keep them going, take up the tubers and let them go dormant. then replant in spring. I have kept one for a long time this way and they are supposed to be annuals here. Those pictures are gorgeous. It's a shame you can't send cuttings internationally. Linda 441 for mother's day, my boys bought me a clerodendrum thomsonae red delectum ( red bleeding heart) and it looks wonderful in a hanging basket. Another favorite is ivy geraniums. They bloom constantly and withstand the heat better than the zonal geraniums.

I did some searching on them too Brenda, and I haven't found anything that says that they don't like to be transplanted, so I think it may be a space issue for the size of pots to plant them in for now. If you have the room to plant them into their final large pots and store them, then you could do that. But if storage space for large pots is an issue, as it would be for me, then you could just pot them into a slightly larger pot, if they're root bound, and then plant them into larger pots later on. Cutting them back, from what I've read, should make them get more bushy. And from the one Canadian thread I read, it seems that they may not do extremely well this summer, but will do much better next summer. Providing of course, that they'll over winter well. And on that subject, some people put theirs down in a cool basement, and others kept them growing on inside as a houseplant. Both good options. I certainly do hope that they do fairly well this summer, because as you know, I did pick up a red one on friday too. Apparently they love the heat, so that's good thing to know here on the prairies too. I hope mine is scented, as I read that not all varieties are. That would be a definite bonus. Good luck with them, and take lots of pictures and notes. :0) Laurie

Image by: Clare_CAMichelia Figo var. SkinnerianaWhich Shrubs Smell Good? -     Fragrant Plants       The following list of fragrant plants was compiled by Clare_CA.  Please note, this list is considered a work in progress with additional fragrant plants added over time.       Plant Name Abelia mosanensis ‘bridal bouquet,’ fragrant abelia Abelia trilora Acidanthera, 'Peacock orchid' Agastache ‘Summer Breeze’ Agastache foeniculum Anise Hyssop Aglaia odorata Aloysia virgatas, Sweet Almond Azara microphylla Beaumontia grandiflora Blanc Double de Coubert rugosas Boronia Boronia megastigma Brassavola nodosa (Lady of the Night orchid) Brugmansia Brunfelsia americana Brunfelsia australis Brunfelsia Nitida (Lady of the Night) Brunfelsia pauciflora Buddleia Asiatica Calycanthus occidentalis, Spice Bush Cananga odorata Carolina allspice, Calycanthus sp. Centaurea moschata Sweet Sultan (Annual) Cestrum diurnum Cestrum nocturum Chimonanthus praecox Chlidanthus fragrans Perfumed Fairy Lily (Bulb) Choisya ‘Aztec Pearl,’ Aztec Pearl Mexican Orange Choysia ternata, Mexican Mock Orange Cimicifuga 'Hillside Black Beauty' Citrus (esp. ‘Bouquet de Fleurs’) Citrus (tree) Clematis Montana Clematis, Sweet Autumn Clematis Clerodendron phillipinum Clerodendrum trichotomum Clethra alnifolia Clethra 'Ruby Spice' Coleonema pulchrum/Breath of Heaven Crinum odorata Crinum powellii and C. moorei Daphne bholua Daphne 'Carol Mackie' Daphne odora Datura Inoxia Datura Metel Datura Stramonium var Tatula Datura wrightii Dianthus ‘Bath’s Pink’  Diplarrhena moraea ‘Slieve Donard,’ White Flag Iris Dipogon lignosus Diurnum Double Delight - Hybrid Tea Rose Dracaena fragans Eriodictyon capitatum Lompoc Yerba Santa Erysimum cheiri, Wallflower  (Annual) Eupatorium ligustrinum Euphorbia leucocephala Freesia (Bulb) Gardenia angusta Gardenia 'White Gem' Gladiolus callianthus Abyssinian Sword Lily (Bulb) Gladiolus tristis Marsh Afrikaner (Bulb) Hansa - Rugosa Rose Hedychium coronaria, common white ginger Hedychium coronarium Hedychium flavescens/gardnerianum/flavum/coronarium Hedychium gardnerianum is an outstanding ginger lily. Hedysarum coronarium French Honeysuckle Helichrysum (Licorice plant) Hemerocallis ‘Fragrant Treasure,’ Frangrant Treasure Daylily Hemerocallis ‘Hyperion,’ Hyperion Daylily Hemerocallis ‘Sherwood Gladiator,’ Sweet Gladiator Daylily Hemerocallis citrina, Lemon Daylily Hemerocallis lilioasphodelus, Lemon Lily Hemerocallis minor, Dwarf Daylily Holarrhena densiflora (Jasmine Tree) Hoya lacunosa Hyacinths, Nicotiana, oriental lilies, and easter lilies Hymenocallis ‘Erotica’ Fragrant Basket Lily (Bulb) Hymenocallis ‘Sulphur Queen’ Sulphur Queen B. Lily (Bulb) Hymenocallis ‘Tropical Giant’ Hybrid Basket Lily (Bulb) Hymenocallis narcissiflora (+ ‘Advance’) Peruvian Daffodil (Bulb) Hymenocallis x festalis ‘Zwanenburg’ Primrose Spider Lily (Bulb) Hymenocallis x festalis Spider Lily (Bulb) Hymenosporum flavum, Australian Frangipani, Sweetshade (tree) Illicium Floridanum Jasmine molle Jasminum Azoricum Jasminum humile, Italian/Yellow Jasmine Jasminum officinale, Poet’s Jasmine Jasminum polyanthum, Pink/Winter Jasmine Jasminum Sambac Flore Plena Jasminum Sambac, Belle of India Jasminum Sambac, Grand Duke Jasminum Sambac, Maid of Orleans Jasminum x stephanense, Stephan Jasmine Lathyrus odoratus, Sweet Pea (Annual) Laurus nobilis, Grecian Bay Laurel (tree) Lavandula, Lavenders (many) Lepechinia hastata, Baja Pitcher Sage Leptospermum petersonii,  Lemon-scented Tea Tree (tree) Lillium "Le Reve" Lobularia maritima, Sweet Alyssum (Self-sowing Annual) Lonicera Lonicera japonica Luculia intermedia/pinceana-Luculia Luculia pinceana/intermedia/gratissimus Madame Isaac Pereire, Antique Rose Magnolia ‘Timeless Beauty’ (tree) Magnolia grandiflora, Southern Magnolia (tree) Magnolia hypoleuca Magnolia salicifolia ‘Kockanakee’ (tree) Magnolia salicifolia ‘W.B. Clarke’ (tree) Magnolia seiboldii, Oyama Magnolia Magnolia stellata, Star Magnolia Magnolia Virginiana Magnolia x loebneri ‘Ballerina’ (tree) Magnolia x loebneri ‘Spring Snow’ (tree) Magnolia x stellata ‘Royal Star’ (tree) Magnolia x stellata ‘Waterlily’ (tree) Magnolia x wieseneri Mandevilla laxa Matthiola incana, Stock (Annual) Matthiola longipetala bicornis, Evening-scented Stock (Annual) Melanoselinum decipiens Michelia champaca Michelia chapensis Michelia doltsopa  Michelia figo, Banana Shrub Michelia Wilsonii (sinensis) Michelia x alba Michelia x foggii ‘Jack Fogg’ (tree) Milletia reticulata Mirabilis, Four o'clocks Mitriostigma Axillare or African Gardenia Montanoa grandiflora, Narcissus jonquilla ‘Kinglet’, ‘Sweetness’, ‘Vireo’Jonquil (Bulb) Narcissus papyraceus, Paper Whites (Bulb) Narcissus tazetta, Narcissus (Bulb) Narcissus x odorus, Campernelle Jonquil (Bulb) Nicotiana alata Nicotiana sylvestris Orchid Vanda merillii Osmanthus fragrans, Sweet Olive Passiflora Alata “Ruby Glow” Passiflora belotti Passiflora colinvauxii (honeysuckle fragrance) Passiflora helleri Passiflora Incense Passiflora serratodigitata Passiflora sprucei Pelargonium , Scented Geraniums (all*) -- Pelargonium ‘Filicifolium’  Balsam Pelargonium ‘Tutti-Fruiti’ Tutti-Fruiti Pelargonium capitatum ‘Attar of Roses’ Old Rose Pelargonium crispum ‘Peach Cream’ Peach Pelargonium crispum ‘Prince of Orange’ Orange Pelargonium crispum Lemon Pelargonium graveolens ‘Rober’s Lemon Rose’ Lemon-rose Pelargonium graveolens Rose Pelargonium grossularioides Coconut Pelargonium nervosum ‘Torento’ Ginger Pelargonium nervosum Lime Pelargonium odoratissimum, Apple Pelargonium quercifolium, Pelargonium Almond Pelargonium scabrum ‘M. Ninon’ Apricot Pelargonium scarboravia Strawberry Pelargonium tomentosum ‘Chocolate Joy’ Chocolate-mint Pelargonium tomentosum Peppermint Pelargonium x fragrans ‘Nutmeg’ Nutmeg Pelargonium x fragrans ‘Old Spice’ Old Spice Philadelphus ‘Fallbrook’, ‘Galahad’ Mock Orange Philadelphus microphyllus Small-leaved Mock Orange Philadelphus x virginalis ‘Glacier’ Dwarf Mock Orange Pittosporum tobira Japanese Mock Orange Pittosporum tobira Mock Orange Pittosporum undulatum, Victorian Box Plumeria (tree) Polianthes tuberosa, Tuberose (Bulb) Portulandia grandiflora Primula florindae, the Tibetan Primrose Prospero & Golden Celebration - David Austin Roses Psoralea pinnata Quisqualia indica, Rangoon Creeper Reseda odorata Mignonette  (Annual) Rhododendron atlanticum fragrance of gardenia and clove Ribes aureum, Golden Currant  Rosas Typhoo Tea Rose, (The Apothecary Rose; deep pink) Rose, Angel Face (floribunda; mauve) Rose, Apricot Nectar (floribunda; apricot blend) Rose, Arizona (grandiflora; orange blend) Rose, Betty Prior (floribunda; medium pink) Rose, Buff Beauty (Hybrid Musk; apricot blend) Rose, Cathedral (floribunda; apricot blend) Rose, Chinatown (floribunda; deep yellow) Rose, Chrysler Imperial (HT; also cl.; crimson) Rose, Command Performance (HT; orange-red) Rose, Comte de Chambord (Portland; pink blend) Rose, Crimson Glory (HT; also cl.; crimson) Rose, Dainty Bess (HT; light pink; single) Rose, Double Delight (HT; red-white bicolor) Rose, Electron (HT; deep pink) Rose, Etoile de Holland (HT; also cl.; crimson) Rose, Evelyn (English; apricot-pink blend) Rose, Fashion (floribunda; orange-pink blend) Rose, Fragrant Cloud (HT; coral red-orange blend) Rose, Fragrant Hour (HT; orange-pink blend) Rose, François Dubreuil (Tea; dark red) Rose, Friendship (HT; deep pink) Rose, Granada/Donatella (HT; red-yellow blend) Rose, High Hopes (climber; med. pink) Rose, Intrigue (floribunda; mauve blend) Rose, Ispahan (Damask; medium pink) Rose, Jacques Cartier (Portland; light pink) Rose, Jadis (HT; pink) Rose, Just Joey (HT, orange blend) Rose, Lemon Spice (HT; pale yellow) Rose, Love (Gr.; red blend) Rose, Marechal Niel (cl. Noisette; softest yellow) Rose, Mirandy (HT; garnet red) Rose, Mister Lincoln (HT; dark red) Rose, Nuage Parfumé (HT; also cl.; coral-orange-red blend) Rose, Oklahoma (HT; deep red) Rose, Papa Meilland (HT; deep crimson) Rose, Perfume Delight (HT; medium pink) Rose, Rosa gallica officinalis/duplex Rose, Rosa gallica versicolor (Gallica; striped pink) Rose, Rosa x damascena bifera (Damask, Rose of Castile; m. pink) Rose, Royal Amethyst (HT; lavender) Rose, Saratoga (floribunda; white) Rose, Sheer Bliss (HT; white/pink blend) Rose, Simplicity (floribunda; light pink) Rose, Spanish Sun (floribunda; deep yellow) Rose, Spartan (floribunda; orange-red blend) Rose, Sunsprite (floribunda; deep yellow) Rose, Sutter’s Gold (HT; orange blend) Rose, Sweet Surrender (HT; silvery med. pink) Rose, Tiffany (HT; pink blend) Rose, White Lightnin’ (GR; white) Rose, Wild Spice (shrub) Rosmarinus officinalis Salvia clevelandii Salvia clevelandii 'Aromas' Salvia clevelandii/Cleveland Sage Salvia elegans, Pineapple Sage Salvia melissodora Grape-scented Sage Sarcococca Hookeriana Humilis Sarcococca rustifolia Scentimental, Hybrid Tea Solandra maxima Sombreuil climbing antique Stephanotis floribunda Sweet Afton Sweet Chariot - miniature "hanging basket" rose Syringa microphylla 'Superba' Tagetes nelsonii, Citrus Marigold Telosma cordata, Pakalana Vine Thornless Honey Locust-Gleditsia triacanthos f. inermis Tilia cordata, Little Leaf Linden Trachelospermum jasminoides, Star Jasmine Ugni molinae, Chilean Guava Umbellularia californica California Bay Laurel (tree) Verbena x hybrida ‘Defiance,’ Defiance Verbena Viburnum carlesi 'Compactum' Viburnum Carlesii (clove scent) Viburnum, Korean Spice Viola Odora Weigela florida 'Variegata nana' Wild clover, Melilotus alba Wintersweet, Chimonanthus praecox Wisteria    

Aw shucks! I wish people wouldn't just read the first answer they get and take as gospel. Dipladenia and Mandevilla are just two names for the same plant, like daffodil and narcissus. It's a Brazilian plant and is fussy. They need a lot of warmth and sunshine to flower well. They are not fast growers, even here, and one thing they hate is pruning . Never cut them back . All you will get is leaves.