Showing posts sorted by relevance for query bud break. Sort by date Show all posts
Showing posts sorted by relevance for query bud break. Sort by date Show all posts

Monday, 10 April 2023

Bud break


In the past few weeks, there have been exciting signs of the arrival of spring in our vineyard. It is the time when grapevines "bleed", a moving sight in the whole of their growth cycle. This "bleeding" is a signal that the period of winter dormancy is over and that the vine is gradually coming back to life. Bleeding marks the start of bud break in vines when the plant re-triggers its activity from its root system.  

Yesterday, there were clear signs of bud break or bud burst on all but the Albarino vines, which remain fairly dormant if they are still alive. I would classify 9 April as the official day for bud break this year. 


In 2022, It occurred on the 7th of April. 


Friday, 7 June 2019

Flowering has begun

Flower clusters on Rondo vines

Well, May was a strange month. Much cooler than normal. Only 11.7°C degrees mean air temperature compared with the three prior years being about 13°C. And whereas it started out dryer, it ended wetter at 112.5 mm compared with 60-70 mm in the last three years. These values are reported for Newport, only 7 miles away and on the water much like we are.  

Tuesday, 20 February 2024

Bud break in the polytunnel


Vanessa has started to unfurl her leaves in the polytunnel. It's so exciting. In 2022, bud break took place on 4 March. That's two weeks later than this year. I can't find a reference to bud break in 2023. January was the warmest January on record continuing the trend of warmest months on record. 



The apple tree in the polytunnel has also started leafing. Unfortunately, I can't find a reference to when it leafed last year. I'll have to keep better tabs on this stuff as climate change accelerates. 


It was a beautifully sunny day, so we washed the cars. It was much needed. 


I am busily starting seeds for our vegetable and flower gardens and I am really pleased with the system I have put in place. I start the seeds on warming mats in the greenhouse, then transplant them into small pots and move the seedlings into the plastic greenhouse inside the polytunnel to grow. Then I plant them out into the polytunnel beds or into bigger pots for the outdoor beds, which I harden off in the polytunnel. 






 





Wednesday, 2 April 2025

Bud break!


We've had the most incredible spell of weather for days now. No rain, plenty of sunshine, warm temperatures and little breeze. Today was T-shirt weather, so I went up to the vineyard to check the status of the vines. Lo and behold we have bud break also known as bud burst on all the varietals. It's at an early stage but clearly visible. It's about a week earlier than the previous two years

As long as we survive the next little while without frost, the next big event will be flowering.










Even the new Rondos planted this year have buds.


A cherry tree is preparing to bloom. 





Thursday, 28 March 2024

Bud break today!

Rondo


It was a beautiful day in Mayo, sunny and calm. I had a hunch bud break (or bud burst) would happen in the sunshine today. Four out of 5 varieties did, more than a week earlier than the past two years. The only vines not showing any signs of waking up are the Albarino. They don't look very happy but it doesn't look like any more have died. Let's hope we don't get frost -- let the cycle begin. 

Solaris

Chardonnay

Pinot Noir


Albarino

 

Friday, 10 July 2015

Picking the grape varieties. Viti-culture

When I titled this picking the grapes, I didn't mean the fruit itself.  I meant the vines. You have to start somewhere. I am happy to say that the vines we chose -- well Alex selected -- are alive and actually growing. That's a good first step, I suppose. This is after all agriculture, and we know how intelligent it is to get into that with climate change around the corner.

As you can see, we are not especially pedantic about keeping the grapes weed free. Here's another one of my hair brained theories. Grapevines evolved into vines because they were growing in crowded conditions. In their native territory, they climbed trees to reach the sun where their fruits could ripen. No wonder they like poor soil. Well, if that's the case, then clearing everything around them will keep them short and fat, rather than reaching for the sun. Let them have a little competition if that's what they like, I say.

The grape is a particularly interesting specimen. There is only one species, Vitis vinifera, and hundreds of cultivars that are grown in different regions and largely responsible for the rich variations in the resultant wines. The grapevine varieties we picked are Rondo for red and Solaris for white, both on SO4 stock. These are cultivars that are supposed to do well in Ireland outside without polytunnels. So far so good.

The vines are grafted onto SO4, the rootstock of Vitis berlandieri, a native of North America, which is particularly resistant to phylloxera -- the disease that almost killed off the great vineyards of Europe -- and lime, which is a major component of the soils of France where grapes were grown.  Generally, grapes like acid soil. I was about to mulch them with pine needles but now I am not so certain. Better read up on SO4 first.

I look at this as the year of getting to know each other. The growth cycle of grapevines is an annual process beginning with bud break in the spring and culminating in leaf fall in autumn followed by winter dormancy. The stages of the annual growth cycle usually become observable within the first year of a vine's life. The amount of time spent at each stage of the growth cycle depends on a number of factors, most notably the type of climate and the characteristics of the grape variety. This is our introduction to viticulture. And it is the grapevine's introduction to how much we will do to support its development. 

From a winemaking or viniculture perspective, each step in the process plays a vital role in the development of grapes with the ideal characteristics for the making of a wine. Some things are good. Others are bad. Viticulturalists  monitor the effects of climate, disease and pestilence in facilitating or impeding the vines progression from bud break, flowering, fruit set, veraison, harvesting, leaf fall and dormancy. Human nature is to control all of the above, reacting to situations with the use of viticultural practices that we have yet to learn -- like canopy management, irrigation, vine training and the use of agrochemicals.

How far we are willing to take it remains to be seen.  At least our grapevines are visible from a distance in the field now. That's a good baby step.

Welcome to Daria's Vineyard.





Thursday, 22 April 2021

Late Frost in Texas


The vineyards in Texas have suffered this year. The state, which normally doesn't need to heat homes with the oil it produces, had prolonged severe cold this year and now the latest frost recorded ever. North Texas and High Plains regions hit low temperatures on the night of April 20-21. By the third week in April in “normal” years, vineyards are well on their way to producing a large percentage of the grapes grown in Texas. Some vines would be blooming, others beginning to set clusters, and the threat of frost would be in the distant past. 

The 'winter freeze' which lasted from February 9-17 already did some damage in parts of the Lone Star state. The cold temperatures were the equivalent of a Spring frost for the Gulf Coast region as vines had started to set buds there and in the Rio Grande River valley had already had bud break. To the east and south, some vines were closer to bud break and, therefore, had more potential for cold temperature damage. According to the National Weather Service, the average date of the last freeze in the Dallas area is March 12. 


Monday, 20 December 2021

Winter Solstice

Polytunnel Christmas Tree

I am so excited. Tomorrow marks the day when days start getting longer again. The Winter Solstice on the 21st of December is always the great turning point for me. It's the shortest day of the year delivering only 7:23:41 of daylight. I go from wondering if I'll be able to make it through the winter to looking forward to the grand stretch in the day. 

This year, once again, with the Omicron variant of the coronavirus spreading around the world like wildfire, they are live streaming sunrise from Newgrange today, tomorrow and the day after but not allowing any visitors in. Today, the forecast is for dense fog on the east coast. No luck with the light. 

We've had grey greyness for days now and will have it tomorrow, too. Wednesday and Thursday we are to have heavy rain. Then nice on Christmas Eve and a gale on Christmas day. Alex and I are on duty Christmas Day at Ross House so we'd be inside all day anyway.

I will start pruning in the new year. I've been reading up on new thinking about pruning. It seems some say to do a partial pruning as normal but to leave more vine until March or after bud break to prune as that will delay bud break and avoid frost damage. It's a method that may mitigate the effects of climate change. I don't think we can afford that given our short season, especially given that the result was lower sugar content. 

For now, it's just confusion about everything in life. At least we got our tree up. And the one at Ross and the one on the raft in the inlet. Three trees in two days -- a record of sorts. Oh, and a little artificial one in the polytunnel because we happen to have three of them. 

So, Happy Christmas everyone! We'll see you again after. 

Rosnakilly Raft Tree

Our tree

Ross House Tree

Monday, 18 March 2024

A little progress

 

Solaris is farthest ahead

I'm visiting the vineyard routinely now as the buds are starting to swell. Yesterday, St Patrick's Day, was warm and sunny but there was standing water throughout the vineyard and it's raining again today. Last year, bud break was recorded on 10 April. The year before, it took place on the 7th of April. Given that February was the warmest on record and the ninth consecutive warmest month globally, I'd say that bud break will come early this year. Let's hope we don't get a late frost and spring storm. 

In the climate statement issued by Met Eireann, they noted that the winter of 2023/2024 was the eleventh consecutive season with above-average temperatures. December and February were mild and wet while January was cool and dry overall.  

Global Mean Temperature Anomaly 

In France, vignerons are bracing for frost in April after a particularly mild winter. UK grape growers will soon have access to an app that will warn them of impending frost. Climate change is leading to buds bursting earlier, leaving them vulnerable to subsequent bouts of frost.

Cherry blossoms are blooming early from Tokyo to Washington, DC as climate change makes winters and springs warmer. It's wreaking havoc on the tourism industry drawn to the cherry blossom spectacle. The National Park Service announced PEAK BLOOM on Sunday, St Patrick's Day, a near record. But this is the fastest that the blossoms have gone through the five stages of the bloom cycle, and a warming climate has been a factor. Let's hope that the bloom cycle of our grapes is not similarly affected. 

Chardonnay is looking good. 

Pinot Noir coming along

Albarino is the last one in line

Rondo is slow getting started this year. 

The fields are very wet. 

Global SSTs are heading off the charts

The North Atlantic is staying particularly warm.