Spring Bloom in Mississippi: Peak Timing for 2027

Flowering dogwood and eastern redbud normally peaks around March 25. Below: how far ahead or behind this spring is actually running, and what that does to the date.

Flowering dogwood and eastern redbud normally peaks around March 25 in Mississippi. No Spring Index anomaly is on file for Mississippi for 2026.

Flowering dogwood and eastern redbud peak

Mar 25

Spring Index now

…

Sourced blooms

How spring is running in Mississippi right now

Live · USA-NPN, updated daily

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First Bloom Index

final for 2026

March 25

typical flowering dogwood and eastern redbud peak

per National Park Service, Natchez Trace Parkway

not shifted

shifted for this year

live grid holds the spring just gone

0 of 3

reference points reporting

Natchez, Jackson, Tishomingo

Because the Natchez Trace Parkway runs 444 miles from southwest to northeast, the Park Service treats its bloom as a moving front rather than a date, and puts the Natchez end two weeks to a month ahead of the Nashville end.

Live, from the USA National Phenology Network

The three Spring Indices for Mississippi

USA-NPN runs three models of spring onset and publishes a daily anomaly grid for each: how many days ahead of or behind the 1991 to 2020 normal this year’s index date fell, at 4 km resolution. All three are read at Natchez, Jackson, Tishomingo and averaged.

First Leaf Index

Reading the grid

Fetching the 2026 anomaly from USA-NPN.

First Bloom Index

Reading the grid

Fetching the 2026 anomaly from USA-NPN.

Late Bloom Index

Reading the grid

Fetching the 2026 anomaly from USA-NPN.

This is a measurement, not a forecast. None of these grids carries a date later than today. They say how spring has run so far this year, which is a leading indicator for the blooms still ahead of you and nothing stronger. Right now it is the second half of the calendar year, so the live grid holds the spring that finished months ago. It is shown as history, and 2027’s dates are not moved by it. The 2027 readings start filling in from late January.

White serviceberry flowers with long narrow petals opening on a thin branch against a blurred brown background — Serviceberry, the plant that opens first in a lot of eastern woods and is the reason the shad run and the bloom share a name. Early species like this one track the First Leaf Index closely; a June mountain flower does not. “Amelanchier-ovalis-flower” by Sten Porse, CC BY-SA 3.0

What Mississippi is known for

Signature blooms, with their sources

Each card shows the typical window from the institution that published it, and next to it the same window shifted by whichever Spring Index normally fires closest to that species’ own peak. The quote under each one is the sentence the window came from.

Flowering dogwood and eastern redbud

Cornus florida and Cercis canadensiswild

Typical peak

March 25

March 1 to April 30

Shifted estimate

Not shifted out of season

The live grid currently holds the spring just finished, so next spring's dates are not moved by it.

The Natchez Trace Parkway end to end, with Rock Spring at milepost 330.2 and Cypress Swamp at milepost 122.0 named as the spring wildflower stops.

The Park Service is unusually specific that this bloom moves along the road: the Natchez end runs two weeks to a month ahead of the Tennessee end, so a single date for the parkway is meaningless.

“It is warmer on the Natchez end of the Parkway and the blooms there are about two weeks to a month before the Nashville end.”

Source: National Park Service, Natchez Trace Parkway · the source gives the window; the peak shown is its midpoint, not a published date.

Piedmont and Florida azalea

Rhododendron canescens and R. austrinumwild

Typical peak

March 31

March 20 to April 10

Shifted estimate

Not shifted out of season

The live grid currently holds the spring just finished, so next spring's dates are not moved by it.

Southeast Mississippi. Crosby Arboretum at Picayune is the state's showcase for native plantings.

The month range is Alabama Extension's, for the same two species across a shared range that its page states includes southeast Mississippi. Mississippi State Extension names the species but publishes no months for them.

“late March to early April”

Source: Alabama Cooperative Extension System · the source gives the window; the peak shown is its midpoint, not a published date.

Southern Indica azalea

Rhododendron spp.planted

No published window. No citable institution puts months on this one, so the card carries where and what, and the source, without a date.

The Natchez historic district gardens and the Gulf Coast.

The big landscape azaleas of Natchez are the thing people travel for, and Mississippi State Extension puts no month on their peak: mid-spring through early summer covers the whole genus, not this group.

“beautiful blooms that can provide an array of colors from mid-spring through early summer”

Source: Mississippi State University Extension Service

One species above carries no date: no institution publishes months for it, and only sourced dates are printed here.

Natchez Spring Pilgrimage, March 11 to April 10, 2027. “Spring Pilgrimage 2027 March 11 - April 10” Pilgrimage Garden Club, Natchez.

Fixed event dates and moving bloom dates are two different things. A festival is scheduled a year out; the flowers are not consulted. In a spring running two weeks early the peak can be gone before the weekend it was planned for, which is exactly what the anomaly above is useful for spotting.

The method

Two halves: a sourced window and a live index

The Spring Index is a genuinely good national product that almost nobody outside research uses, and it has one enormous limitation: it is species-agnostic. USA-NPN built it from historical observations of first leaf and first bloom in a cloned lilac cultivar and two cloned honeysuckle cultivars, chosen because they are among the first woody plants to leaf out and bloom and are common across much of the country. It can tell you spring is running six days early in your county. It has never heard of flowering dogwood and eastern redbud.

So the two are paired. The typical window for each species on this page was researched by hand from a state agency, an extension service, a park service unit or a botanical garden, and the sentence it came from is printed under the card. That half is stable and specific but says the same thing every year. The anomaly half is live and current but knows nothing about the plant. Neither works alone. Together they answer the question people actually ask.

The matching rule is simple: each species is shifted by whichever of the three indices normally fires closest to that species’ own typical peak at Natchez. A February desert bloom gets the First Leaf anomaly. A June mountain laurel gets the Late Bloom anomaly. Using one number for both would be the mistake.

Dense panicles of white lilac flowers in full bloom on a sunlit shrub — Lilac, which is not incidental here. The Spring Index models were built from decades of observations of a cloned lilac cultivar and two cloned honeysuckles, planted at sites across the country so the same genetics were being watched everywhere. That is why the index is a clean measure of weather rather than of local plant variation, and also why it cannot speak for any other species without an assumption. “2018-05-13 (139) Syringa vulgaris (common lilac) at Bichlhäusl in Frankenfels, Austria” by GT1976, CC BY-SA 4.0

The Mississippi bloom season at a glance

Climatological typicals

From the earliest sourced bloom in Mississippi to the latest. Any single season commonly lands a week to a fortnight either side, which is what the Spring Index anomaly above is measuring.

Getting the timing right

What actually moves a bloom date

Accumulated warmth, not one warm day

The Spring Index models take temperature from January 1 onwards and fire when a threshold of accumulated warmth and warm-day events is met. One February afternoon does nothing. A mild fortnight moves everything.

Elevation and aspect

A 4 km grid cell averages over ground that a plant does not. South-facing slopes run ahead of the cell; shaded coves and high ground run behind it, often by more than the anomaly itself.

Winter rain, for the annuals

Temperature sets when. Autumn and winter rainfall often sets how much. That split matters most for desert annuals and prairie wildflowers, where an early spring and a thin display are perfectly compatible.

The late freeze

An early spring is not automatically a good one. Bloom that arrives ahead of the last freeze date is exposed, and a hard frost on open flowers ends that species’ season rather than delaying it.

Fixed festival dates

Bloom festivals are scheduled months ahead. In a fast spring the flowers can be finished by the weekend named after them, and in a slow one the buds are still shut. Check the anomaly before booking.

Local reports beat models

For the final week of planning, a park’s own bloom report or a recent photo beats any grid. Use this page to pick the fortnight; use somebody on the ground to pick the day.

Common questions

Mississippi spring bloom FAQ

When do flowering dogwood and eastern redbuds peak in Mississippi?

National Park Service, Natchez Trace Parkway puts the window at March 1 to April 30, with the peak around March 25, though that peak is the midpoint of their window rather than a date they publish. Their words: "It is warmer on the Natchez end of the Parkway and the blooms there are about two weeks to a month before the Nashville end." That is a climatological typical. The panel at the top of this page then reads USA-NPN's Spring Index for Natchez, Jackson, Tishomingo and tells you whether this particular spring is running ahead of or behind that.

Is spring early or late in Mississippi this year?

No Spring Index anomaly is on file for Mississippi for 2026. That number comes from the USA National Phenology Network's Extended Spring Indices, a set of 4 km gridded models regenerated every day from PRISM temperature data. USA-NPN describes the calculation plainly: to determine how the current spring compares to normal, they difference the day of year the leaf out or bloom was reached this year from the long-term average day of year it was met. We read the grid at Natchez, Jackson, Tishomingo and average.

Is this a forecast?

No. Nothing USA-NPN publishes in this product suite is dated later than today. The Spring Index anomaly measures the spring that has already run so far this year. It is a leading indicator for the blooms still ahead of you, not a prediction of them. In the second half of the calendar year the live grid holds the spring that just finished, and this page stops shifting dates entirely rather than moving next spring by last spring's number.

Which Spring Index applies to which flower in Mississippi?

USA-NPN publishes three, covering three different parts of spring. First Leaf is based on the leaf out of lilacs and honeysuckles, which are among the first plants to show their leaves in the spring. First Bloom is based on their flowering, and USA-NPN associates it with blooming of early-spring shrubs and leaf out of deciduous trees. The Late Bloom Index indicates when plants that bloom at the tail end of the season are flowering. Each species on this page is matched to whichever of the three normally fires closest to its own typical peak, and shifted by that one. At Natchez the three normally land around day 38, day 69 and day 113 of the year.

Where should I go in Mississippi to see the bloom?

Flowering dogwood and eastern redbud: The Natchez Trace Parkway end to end, with Rock Spring at milepost 330.2 and Cypress Swamp at milepost 122.0 named as the spring wildflower stops. Piedmont and Florida azalea: Southeast Mississippi. Crosby Arboretum at Picayune is the state's showcase for native plantings. Southern Indica azalea: The Natchez historic district gardens and the Gulf Coast. Those locations are the ones the sources named; where a source named a species but no place, or a place but no month, the card carries what the source gives.

How accurate is shifting a bloom date by the Spring Index?

It is an assumption. The Spring Index models three cloned ornamental cultivars, a lilac and two honeysuckles, chosen because they are among the first woody plants to leaf out and bloom and are common across much of the country. It has never heard of the species on this page. What the shift assumes is that a plant blooming at roughly the same point in the season responds to the same accumulated warmth in roughly the same way, which is why each species is matched to the nearest of the three indices rather than to one generic number. Elevation, aspect, and local soil moisture will all move the real answer, and a hard late freeze can take a bloom out entirely.

Do the Mississippi bloom windows change from year to year?

The windows on this page do not; they are climatological typicals compiled from published guidance and they stay put. What changes is the spring. That is the entire reason the Spring Index panel is here: the researched window tells you where to start, and the anomaly tells you which way this particular year has moved it. Any single season commonly runs a week to a fortnight either side even before you account for the anomaly.

Where does the underlying data come from, and can I check it?

Yes, and you should. The Spring Index layers are published by the USA National Phenology Network at usanpn.org under a Creative Commons Attribution 4.0 licence, and their map service is open, so the same numbers this page shows are queryable by anyone. The bloom windows come from the institution named under each species card, with the sentence we relied on quoted directly so you can find it on their page.

Pink peach blossoms in close-up with a honey bee crawling into one pale flower — Orchard bloom is the one place where an early spring has a cost attached. Fruit growers watch these dates against the last freeze rather than for the view, because open blossom is the most frost-vulnerable stage of the year. “Apple Blossom1” by Wolfgang Bergmann sen., CC BY-SA 3.0

The rest of the Mississippi calendar

Plan the rest of your Mississippi year

Mississippi frost datesThe last freeze is what decides whether an early bloom survives being early. Same weather, opposite worry.Mississippi fall foliageThe other end of the growing year, and the other season people plan a drive around.Mississippi hummingbird migrationArriving hummingbirds and opening flowers are the same event seen from two directions.

More Southeast spring bloom pages

Clusters of magenta redbud flowers growing straight out of the bare branches of a redbud tree — Southeast spring. The bloom front moves north and uphill at roughly the pace the Spring Index tracks, which is why a single national date has never meant anything. “Cercis canadensis, Bird Park, 2026-04-07-1” — Cbaile19 — CC0

Bloom windows are climatological typicals, each one attributed on its card to the institution that published it, with the supporting sentence quoted. Where no institution publishes a window, the card carries the source and no date. Spring Index anomalies are read live in your browser from the USA National Phenology Network’s Extended Spring Indices (First Leaf, First Bloom and Late Bloom), 4 km gridded products regenerated daily from PRISM temperature data and compared against the 1991 to 2020 normal; source: USA National Phenology Network, www.usanpn.org, used under CC BY 4.0. Those grids measure the spring that has already run and are not a forecast. The rule that matches each species to one of the three indices is ours. Heading days to peak: 167 (past). National picture: where spring stands across the country →
Hero image: “Cercis canadensis, Bird Park, 2026-04-07-1” — Cbaile19 — CC0