To clarify the above quotation, nothotsuga was responding to someone who had said ""Darjeelingensis" developing green adult foliage liable to be C. himalaica." In conclusion about these nomenclature issues, is it safe to assume that all Himalayan/SW Asian Cupressus _are_ weepy, and therefore anything not weeping, and/or resembling Cupressus lusitanica...is in fact C. lusitanica or another imposter? And that these Himalayan plants are either very tender z9 (Nikkie's) or slightly hardier (see other post)...but not hardy enough to withstand 7F undamaged as the plant I have in the post above? FWIW people have said Cupressus X ovensii should be less hardy than C. X leylandii. However after this cold winter, my C. X ovensii looks just as good as my leylands, if not better. (and the C. X ovensii has also been completely disease free) So I don't think C. lusitanica makes X ovensii hugely more tender than C. macrocarpa of leylandii. Both are from rather mild areas and thus the Nootka parent must contribute most of the hardiness. One more thing: I just read the wiki article about Leyland cypress. I never realized the cross had been made in both ways, with the Cupressus macrocarpa as either seed parent ('Leighton Green') or pollen parent ('Haggerston Grey'). Which is the common clone in the US? This post was edited by davidrt28 on Thu, Mar 13, 14 at 20:49

Beautiful garden! Great conifers, nice pics, Jaro! Cryptomeria j. ' Araucarioides and ' Dacrydioides': Not synonyms, but there are several clones in cultivation. I think it's better to speak from the Araucarioides-Group: All those forms are characterised by rope-like or snake-like foliage. One tree-like form with a central leader is called Araucarioides, more bushy habit with several leaders: Dacrydioides. But there are more very similar or identical clones named: ' Araucarioides',' Athrotaxoides', 'Dacrydioides', ' Enko', ' Hoo', ' Ito', ' Kewensis', Lycopodioides', ' Selaginoides', ' Viminalis'. And it's very difficult or not possible to see a difference between young plants. Do you have a pic of your Dacrydioides from the RTBG? Cupressus cashmeriana: There is a blue and a green selection, available in the nursery of Hodi Toth,Jozsef from Hungaria and these 2 must be less sensitive to frost, maybe with protection in the first years hardy in Z 7.The normal cashmeriana is not hardy enough in Germany. Surely our Hungarian friends know how hardy the selections are. Wolfgang

I am in Zone 6 as well, i would just buy some fungicide to make sure. I just actually got done researching this myself and learned that to keep rust away you must use several types of fungicides and alternate them cause the plants will build a tolerance to just one brand of treatment. They also recommended using both systemic - the plant absorbs the toxins. As well as a contact - kills on contact. Here is what brands i got so far: Systemic: Bayleton, Heritage and Banner Maxx Contact: Daconil and Dithane These suggestions are from a licensed and registered hem farm so i am going to experiment with them this yr and i believe things will be good. If i were you i would not take any chances on losing your hems to rust or anything else that may be preventable!Rust is an airborne fungicide so i wouldnt take any chances, it could of went into other plants around your hems and lasted the winter and can now be blown back onto your hems....OUCH!! I would just play it safe! And i am making sure that they are protected here!

Beyond that it's anyone's guess. It's not as simple as tree A will live to age X and tree B will live to age Y. Trees also don't just stop growing at some designated height or spread. You can find averages for these aspects, but while I'm pretty sure a parrot will outlive a dog, I don't know how old each will be with precision. I'm not sure what your goal is ... you said you plan to recommend these trees to lots of people. Are you trying to landscape a subdivision or something? Are you wanting to plant a single type of tree in every site? What is this list for? I'm not familiar with tons of varieties of evergreens, but whether something can come down without climbers or bucket trucks isn't solely dependent on size. The neighbor's last ailing tree (40'ish cherry) could have been dropped across our yard ... if we didn't mind it destroying our perennial garden and cobblestone paths; a bucket truck was brought in. Their current dead tree (50'ish hickory) is capable of hitting houses or wiping out the street, or it could kill several other trees on its way down if felled ... it will also need a bucket truck. The 35' branch that had to be removed off one of our 75'-100' white pines was removed by suspending it off of the pine itself and two nearby oaks and lowered (thankfully not just dropping on all the understory trees it was looming over). There were aerialists and a little vehicle (pulled lines and hauled log chunks) but not bucket truck on that removal. Our Eastern Red Cedar is about 35' tall and it was probably 20'ish in the early 80s, no idea how old it is, but we do know it's been hit by lightning twice (and had its top reshaped). Every mature tree on our property, except the serviceberry, requires an aerialist or bucket truck to prune. For a while the Bradford pear (no commentary on its existence, please) could be pruned with a pole, but it needs a bucket truck too now that it's probably 25'-30' tall. It was the last holdout. So I wouldn't count on any tree never requiring a bucket truck or climber. The birds love our yew shrub (we hate our yew ... though if it didn't have to be pruned multiple times a year/was in a different spot it might be more acceptable). They also love forsythias and quince, though. There's definitely nests in the cedar, and I'm pretty sure several of the oaks, maples, and cherries have nests in them. It depends on the bird what tree they'll build in. One word about hedge style planting, my grandfather planted a hedge hemlocks, and they were great and beautiful until one in the middle had an issue. It's nearly impossible to replace a tree that's 25' tall and planted tightly, and the two on the sides of the hole lacked green towards the hole because they had previously been growing into the missing tree. I don't recall whether they took down the whole hedge or moved and the next owners did it; the hedge no longer exists. Price of tree ... what's your definition of small?