Questions tagged [agriculture]

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19
votes
7answers
810 views

G'dolim or Rabbis Owning Pets

Are there any g'dolim (or rabbis of major influence) - past or present - who are known to have owned pets/kept animals for non-agricultural purposes?
6
votes
3answers
503 views

Why don't we distribute Ma'aser Rishon or Ma'aser 'Ani nowadays?

Produce grown in the Land of Israel has to have Teruma, two of three different kinds of Ma'aser, and Terumat Ma'aser removed, as described in this OU Kosher article. Of these five separations, three - ...
11
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3answers
403 views

Animals vs. plants: kashrus

Why did God make all plants, but only some animals, kosher? Sources, please.
11
votes
1answer
454 views

Are plants that exhibit rapid plant movement considered non-Kosher animals?

There is a question here asking if sea sponges are Kosher. The answers seem to center around the idea that regardless of if they have animal cells, a halachic classification might depend on how it ...
7
votes
3answers
168 views

Why do we put out greenery on Shavuos?

Those that have the Minhag to put out greenery in the Shul on Shavuos, why do we do it?
4
votes
1answer
2k views

What would be an example of permitted vs prohibited cross-grafting with fruit trees?

I haven't studied Tractate Kilayim. I know you can't plant grapes with wheat. What about, say: Jazz apple = Royal Gala apple X Braeburn apple ? Nectarine = Peach X Plum ? Nectaplum = Nectarine X ...
22
votes
8answers
2k views

How do you maximize your aravot's period of freshness?

Every Sukkot any aravot that I start the holiday with tend to get dried up by the end of the holiday, if not to the point of being unfit for service, at least enough to be ugly. What do you do to ...
4
votes
2answers
217 views

Cutting down fruit tree not worth its upkeep

There's a general prohibition to cut down fruit trees (see this question), based on 'bal tashchis'. Would the prohibition apply even to fruit trees that are expensive to maintain (and do not produce ...
12
votes
3answers
163 views

Can you use algae, water plants (e.g. water lillies), hydroponics or fungi for schach?

My understanding is that schach must be from a plant that specifically grows from the ground. If this is not so, would there be any problems using: algae / seaweed / water lilies / swamp scum - these ...
11
votes
1answer
1k views

How to grow your own aravos

On Sukkos, Jews are commanded to take the four species, among them the "ערבי נחל" or "willow branches," commonly referred to as ערבות aravos. How might one go about growing them himself, at home? (I ...
9
votes
2answers
2k views

Ripping out a blade of grass by a funeral?

At my great-uncle's funeral today, all of the participants (except the mourners) were told to rip out a blade of grass and say a passuk (I don't remember which). Is this a Jewish minhag? If so, what ...
7
votes
3answers
808 views

Why is bamboo kosher for schach?

Why is bamboo kosher for schach? I know everyone uses them, but one should not use anything like planed wood which is used for building or straw for thatching roofs. I understand that certain bamboo ...
10
votes
3answers
1k views

Halachic status of kamut

Khorasan wheat, often known by one popular brand name thereof, KAMUT®, is an ancient grain that is related to modern-day wheat, but has a number of differences. Does it have the halachic status of ...
8
votes
1answer
468 views

Kilayim in Chutz la'eretz

What is the din with regards to kilei hayerek in chutz la'eretz? I see that many people have gardens in their backyards with vegetables right next to each other of different types.
7
votes
2answers
286 views

Does kashrut depend on peah, leket, etc?

I understand that if a crop in the Land of Israel does not have the trumot and maaserot properly separated, then the produce is tevel and cannot be eaten (until it is done). But that made me think of ...
4
votes
1answer
646 views

What bracha should be made on hydroponics/aeroponics?

Hydroponics is a method of growing food (mainly vegetables) with their roots in water, not soil. Aeroponics is when it is grown in air, with the roots being sprayed. What bracha should be made on ...
3
votes
1answer
668 views

Why don't Jewish people put flowers on graves?

I know that Jews have specific traditions regarding burial and cemeteries, and that one of these traditions involves putting pebbles on gravestones, which I think is quite beautiful, although I don't ...
19
votes
1answer
450 views

Mushrooms in a Vineyard

The bracha on a mushroom is "shehakol" because the Talmud (Berachot 40b) correctly (I think) states that mushrooms do not derive their nutrients from the ground. If a mushroom is growing in a ...
10
votes
4answers
477 views

Plants before the Sun in the Order of Creation

Why does plant life precede the Sun in the order of creation given that plants need the Sun to do photosynthesis?
20
votes
3answers
491 views

How did plants survive the Mabul?

Inspired by this answer: As far as I can tell, there is no mention of Noach bringing plants into the ark. Moreover, it appears Noach had nothing to do with the survival of the plants, given that the ...
2
votes
1answer
81 views

borei menei b’samim, flowers and fresh mowed grass

Someone told me that if one stops to smell the flowers he should remember to make the borei menei b’samim. Where is the source for this in halacha? Does one make borei menei b’samim if he enjoys the ...
13
votes
2answers
702 views

Why a burning bush?

When G-d wanted to speak to Moshe for the first time, He grabbed Moshe's attention by showing him a burning bush that wasn't being consumed by the fire. But why this? From all the possible things to ...
7
votes
1answer
256 views

Can one test God with Shmita?

In Vayikra 25: 20-22 (below) God says that he will guarantee a bountiful harvest if the Shmita is observed. Unlike other promises of spiritual reward, this one is easily quantifiable with observable ...
6
votes
1answer
108 views

How to collect Bikurim practically?

So we know that Bikurim was collected by tying a reed to the first fruit of a particular field when it would be found budding. We also know that Chazal say to give one 60th of one's produce as ...
6
votes
3answers
345 views

Orla: are the leaves of the plant included in the prohibition?

I have recently planted a grape vine. The nursery insists that it is at least 1 year old (and the size of the plant suggests no less than 2 years old). It was planted with it's roots entirely ...
5
votes
0answers
134 views

Arvei Nahal - Acceptable Species

Vayikra 23:40 provides the commandment to take up the 4 species on Sukkot: וּלְקַחְתֶּם לָכֶם בַּיּוֹם הָרִאשׁוֹן פְּרִי עֵץ הָדָר כַּפֹּת תְּמָרִים וַעֲנַף עֵץ עָבֹת וְעַרְבֵי נָחַל וּשְׂמַחְתֶּם ...
4
votes
0answers
56 views

*Tzomeach* (צוֹמֵחַ) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as tzomeach, animal, bird, or fish, as each group has its own distinct requirements. E.g., animals need to chew cud ...
4
votes
1answer
169 views

Chanukah Bushes?

Every year, I hear people (typically heterodox or jokers) talking about "Chanukah bushes" (likely a parallel to Christmas trees). Now, beyond the obvious of this not being a traditional practice, ...
3
votes
1answer
71 views

Would there be any maaser derabbanan on hydroponically grown plants?

Related: What bracha should be made on hydroponics/aeroponics? This question was originally mentioned by Rabbi Eliyahu Fink in his Daf Yomi shiur (Shabbat 128). He was talking about tevel d'rabanan -...
3
votes
1answer
345 views

Which plants are most suitable for sukkah roofing?

In South Africa palm branches are very popular as schach because they stay green for long and cover a lot of space per branch. Many palm branch sellers advertise around sukkot time, and every year the ...
3
votes
2answers
297 views

Plants growing out of the Kotel

Is there a special status awarded to the plants (shrubs?) growing out of the Kotel? Why don't they get rid of them, as their roots obviously have deleterious effects on the wall?
2
votes
2answers
112 views

What is “קוצר לשחת”?

The mishna, M'nachos 71 amud 1, says: קוצר לשחת ומאכיל לבהמה That is, under the circumstances described there (not important for this question), one is allowed to cut his grain לשחת and feed the ...
1
vote
2answers
146 views

Planting grass during shmita

Is it permissible to plant grass during the shmita year? As this question indicates, there is a machloket regarding planting non-fruit trees during shmita. If grass is like a tree, it would be ...
1
vote
3answers
372 views

What green plants can I use for s'chach?

I use bamboo poles for s'chach (yes, real bamboo poles). They're great, but I would like a little green up there, if I can get it. Some years we used branches from the tree that was growing over our ...
1
vote
0answers
71 views

Large scale hydroponics and Shmita

The gemara in Nedarim 59 (among many other places) discusses the concept of shmita produce and plants grown from them retaining their status when the original "seed" isn't destroyed when planted. In ...
1
vote
1answer
119 views

Maaser Sheni Coin Value

I've been reading about redeeming maaser sheni and I've noticed people mentioning redeeming maaser on a coin of value significantly less than the value of the maaser: "For example, a cRc company ...
0
votes
1answer
269 views

What conditions would render plants non-kosher?

Under certain conditions, I know that uncontaminated (e.g. no insects / meat, etc) plant-based foods are prohibited (ie., non-kosher). Examples I can think of include: Non-kosher wine Chometz ...