But the shrub is just not the flower machine in Minnesota that it is on Cape Cod. Beautify your garden all season long. Bigleaf Hydrangeas (Hydrangea macrophylla)Even though I’m located in Zone 5, my ‘Endless Summer’ mophead hydrangea—which usually has huge blue blossoms all summer long—was killed to the ground.Luckily, it has the wonderful ability to bloom on both old and new wood, so even though they were a bit later than usual, there were still many blooms. Ego45 - Many thanks for your very generous feed back on my ??? Back to Alice & quercifolia in gen - I'd rather be forewarned than be lamenting later on. Plant 4 feet apart for smaller border plants. To be on the safe side, if you live in a cold zone with a typical Northeast winter, your hydrangea should be hardy to at least Zone 5. I am about to purchase Hydrangeas. Try it, and let us know how it does for you! I fertilized in spring but no blooms or buds this year. Two subsequent frosts nipped the emerging leaves, but it is putting out others, furhter down the stalks so I am hoping it will pull through. You need mulch, garden stakes, a hammer, a staple gun, oak leaves, a bed sheet and burlap. The last 3 are problematic and I'm learning how to massage them into bloom. Don’t let the flowers wilt or they will brown and disappear quickly. (Unfortunately, I think they all look pretty much alike in bloom.). I have a 16 y/o Nikko that bloomed for me only 3 or 4 times over the years so I shy'd away from H altogether and just concentrated on all the other perennials I tend in my several patches. Fertilize in early spring with an acid fertilizer if blue blooms are desired. Bigleaf Hydrangeas primarily bloom on last year’s growth, or “old wood.” For this reason, bigleaf Hydrangeas should never be pruned in late summer or fall. Positive: On Oct 16, 2003, wnstarr from Puyallup, WA (Zone 5a) wrote: I see now new growth on it while the Endless Summer is already budding out... My tree-form Annabelle has been thriving for years in zone 4. After all it's a z7-8 (NC, GA) native plant.First, it need 2-3 years in ground to become fully established. Spring/early summer planting is highly recommended for z5-6.Second, of all hydrangeas, young oakleaves are the most succeptible to root rot while still can't stand drought.Therefore, one have to find PROPER watering regimen to satisfy this requirement. Duel Zone? No oakleaf hydrangea has survived for me however, even with burlap and leaf protection. A nice native small tree is Pagoda dogwood. Most selections have large clusters of white flowers in summer. Hi, I am about to purchase Hydrangeas. I have 'ES', 'PM' and 'Dooley' --just planted. The Original, the first of the hydrangea varieties in the collection, revolutionized the way gardeners were able to incorporate hydrangeas in their landscapes. For zones 4 and 5, plant in a sheltered location and mulch during the winter. In many areas, they dry right on the plant in fall and stay looking good through most of the winter. Expect to see a lot more of these soon! I have Hostas, coral bells, and 3 colors of Lamium as ground covers and Lily of the Valley in that 40X6ft shade strip. Oakleaf and bigleaf hydrangeas in zone 5 should be given extra winter protection by heaping mulch or other organic material up around the plant crown. You could start this rejuvenation pruning when the leaves fall in the Fall (so you can easily see inside the shrub) and when the plant has gone dormant (less stress on the plant). Plant the hydrangea here unless the sun bakes this space in the summer. Neither picture show whole beauty of the plants, but you might got an idea.Tardiva:{{gwi:251689}}. I haven't noted the diurnal closing (we aren't open at night) but perhaps they close on cloudy days (?) Annabelle is very reliable in z5 and is knockout in the shade and flowers well. We will find you if you’re out there. Fall Endless Summer® Hydrangea Giveaway. Can be pruned down heavily although it is usually recommended to prune stems in 3 years... First prune the 1/3 longest in year 1. One is coming back just fine, and the other is 'late' to say the least. The buds then open around mid Summer to early Fall (earlier in the South). Other favorites include Limelight (many awards), Endless Summer, and Kyushu. There are many Hydrangeas that flower on both new and old wood, and this is one I frequently recommend to my consultation clients because it’s easy to find. H. quercifolia is somewhat challenging plant for z5.The most of the problems will occur in a first few years.Once established it will be relatively trouble free plant, though not a reliable bloomer. He is a wonderful source of information, as are many other devotees of the Hydrangea forum. In zones 4 or 5 gardeners often find dead canes in the spring instead of stems with green buds. So have no clue as to why its not blooming When all else fails, plan a summer trip to Cape Cod…here it’s practically a law that blue hydrangeas be planted in every landscape. Only cut out the dead stems…don’t prune canes that are living back, no matter what you see your neighbors doing. Grow some hydrangeas in pots and bring them into an unheated garage for the winter. Hydrangea macrophylla Endless Summer® PP15298 Bigleaf Hydrangea. Pruning during the growing season is not recommended, but if desired, prune after the first flush of blooms. Single Zone? This is the third growing season for my endless summer hydrangea. - Energy usage - once you get past the small size wine refrigerators, the energy usage for thermoelectric units will be much higher than a comparable compressor-based wine cooler. We took down an overgrown & no longer productive Linc. Hydrangea quercifolia – Oakleaf hydrangea (Photo credit: Wikipedia) I’ve been looking for a new hydrangea to add to my yard and that means it will have to thrive in zone five. Even though I am on the edge of zone 6, the past few winters sure seems like a zone 5. Do a search for hayseedman's wintering tips. Another thing to consider is to concentrate on plants that are native to your area. Also an oakleaf hydrangea called 'Snow Queen' which is supposed to be hardy to zone 5, and an 'Annabelle' hydrangea, which I see a lot of people around here have success with. Endless Summer Summer Crush Hydrangea Spacing Hydrangea paniculata. I planted a small mophead hydrangea there and we've had beautiful blue-ish flowers the past 3 years. this is in NY State zone 7, 'Kuyshu' is far superior over 'Tadiva', in my opinion.Kuyshu flowers has less fertile florets and almost resemble PG's flowers in its tightness, while Tardiva's flowers are much looser.Also, overall Tadiva has much more loose/open habit, while Kuyshu is more tight and upright.Here are the pictures of Tardiva in a shrub form and Kuyshu in a tree form. If you want to grow an Endless Summer or one of the other repeat-blooming hydrangeas and you live in a zone 4 or 5, here are some tips for success. Try asking your question there as well. Take the covering off in April or whenever your nighttime temperatures stay more or less above 32. Here is a link that might be useful: H. q 'Snowflake'. Rebecca & gardenbug many thanks for reviving this thread!!! I am noticing brown spots on the oakleaf hydrangea leaves and think it must be a moisture problem. and could easily reach 8x8' in just 3 years and 12x12' in 5 years if no dieback.IMO, dwarf cultivars, such as Pee Wee or Sike's Dwarf (both look identical to me anyway) are the only quercifolias that could be/should be attempted to grow in solid z5 on condition that grower is determined and will put reasonable effort to protect them.Fourth, indeed, fall foliage of oakleaves is a site to behold.However, in order to develop fall color it should be grown in a considerable sun, say 3-4 hours, and here you'll have another contradiction. I didn't think that H quercifolia would be hardy for z5 - I have a shady spot and am thinking of Blue Billow (highly recommended byEgo45) or 'Alice' a quercifolia - would anyone have her & share joys or woes? Endless Summer hydrangea spacing depends on the sides too that may do better wonderful source of,... 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